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Monday, 26 October 2026

Second edition of Vinod Wadhawan’s book ‘Revisiting the Scientific Method’

REVISITING THE SCIENTIFIC METHOD: The Need to Make Science More Inclusive in Scope (2nd edition), by Vinod Wadhawan

Published by the author

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Revisiting the Scientific Method: The Need to Make Science More Inclusive in Scope: Wadhawan, Vinod: 9798307226155: Amazon.com: Books

 


 


This book is a follow-up to the previous book by the author (‘The 8-Fold Way of the Scientific Method’). The previous book introduced the reader to the way science is done: Strict adherence to objectivity, rationality, and transparency in handling information about a natural phenomenon we want to understand. The present book goes a step further and takes a critical look at the Scientific Method to see what can be done to make science more inclusive in scope; for example by giving due importance to subjective information also, and not only empirical information. Together the two books provide a fairly comprehensive account of the nature of scientific research, and can serve as course material for the training of an aspiring scientist. The theme of consciousness runs throughout the book because it is the most important example of a nonphysical phenomenon or entity. Ways are suggested for dealing with subjective evidence by relaxing in a carefully guarded manner some of the eight tenets of the present Scientific Method. Big Data is a rather recent development in the history of science. Its availability is having far-reaching consequences for the way science is being done now. The book discusses its promises and pitfalls. Present-day science, which is mostly reductionistic in approach, is not adequate enough for dealing with complex systems. Here again, Big Data can be of big help because pattern formation is an important characteristic of many complex systems, and Big Data is very good at discerning patterns or correlations. Discussion of Karl Popper’s falsifiability criterion occupies substantial space in this book. This is because this criterion is the main reason why the present Scientific Method labels many questions about Nature as unscientific or nonscientific, thus limiting the scope of scientific enquiry. In a more inclusive approach one would also give due importance to the philosophical rival of falsificationism, namely verificationism. Another way of making science more inclusive is to use a diluted version of falsificationism, formulated by Imre Lakatos. There is also a discussion of the work of some other philosophers of science, notably Nicholas Maxwell and Thomas Kuhn. Popper’s philosophy for doing science has proved to be very successful, but it is desirable that the student of science be also aware of other models of how science can progress. 


CONTENTS

 Preface     vii

 1. The Scientific Method    1

1.1      Asking the right question  3

1.2      Objective observation of the world  5

1.3      Coming up with hypotheses for understanding the data  9

1.4      Reproducible verification of predictions of hypotheses  16

1.5      A theory for explaining the hypotheses  18

1.6      Use of unambiguous language and logic  22

1.7      Choice of the smallest necessary set of axioms  26

1.8      The falsification requirement  32

 

2. Complex Systems, Complexity Transitions       35

2.1      Complex systems  35

2.2      Towards a formal definition of a complex system  38

2.3      Complexity transitions  42

2.4      Emergence  45

2.5      Reductionistic science is inadequate for dealing with

complex systems  47

 

3. Big Data and the Future of the Scientific Method     41

 

4. Life, Intelligence, Reality, Consciousness 65

4.1      Life  65

4.2      Intelligence  72

4.3      The nature of reality  74

4.4      Consciousness  78

4.5      The illusionism theory of consciousness  96

4.6    One consciousness or many?  102

4.7      Epigenetics and ‘DNA memories’  104

 

5. Artificial Life, Intelligence, Consciousness       109

5.1      Artificial life  109

5.2      Artificial intelligence 114

5.3      ChatGPT  115

5.4      Artificial consciousness, or machine consciousness  122

5.5      Can a robot acquire consciousness?  125

5.6      Have some of our robots already become conscious?  127

5.7      Analogous correlates of consciousness  133

5.8      Afterlife  136

5.9      Apocalyptic AI and transhumanism  138

5.10  Twenty watts vs. megawatts:

Why your brain shames every AI  146

 

6. Towards a More Inclusive Scientific Method     159 

6.1      Asking the right question  159

6.2      Observation of the world  160

6.3      Coming up with hypotheses for understanding the data 163

6.4      Testing of predictions of hypotheses  166

6.5      A theory for explaining the hypotheses  169

6.6      The language and logic of science  169

6.7      Choice of axioms 170

6.8      How justified is the falsifiability requirement?  172

 

7. Concluding Remarks and Book Summary  181

 

Bibliography      201  

 

Index        215

Preface to the First Edition

 Nature is all there is. All phenomena are natural phenomena, and the Scientific Method is the method of choice for investigating them. The study of all natural phenomena should come within the purview of science. But the strictness of the Scientific Method presently used makes it inapplicable for investigating certain nonphysical phenomena in their entirety, a good example being that of consciousness. In a general sense, consciousness is a state of awareness of one's thoughts, feelings, sensations, and surroundings. It is the subjective experience of perception, cognition, and emotions that is sometimes described as the ‘sense of self’. Consciousness is a fundamental aspect of human experience and an essential characteristic of the human mindbody, and of many other life forms. An important requirement of the Scientific Method is that in any scientific discourse, every word used must convey the same meaning to all concerned. Words like ‘consciousness’ create problems on that score. Although the neural correlates of consciousness help us in taking an empirical view of the situation, the problem remains that we do not know how physical processes in the brain give rise to subjective experiences. How to remedy the situation so that we can have meaningful scientific dialogue on such natural phenomena also?

In my previous book (The 8-Fold Way of the Scientific Method) I gave a fairly comprehensive discussion of what the Scientific Method is all about, and how science is done by applying it. The achievements of the method have been spectacular, and we humans can be truly proud that we invented it. But, as pointed out near the end of that book, there is a need to relax its dictums (in a carefully guarded way) so that the scope of scientific investigations can become more inclusive. I suggested some ways there, and discuss the matter more comprehensively in the present book.

There is a related issue, namely that of understanding complex systems. The human mindbody is perhaps the most complex system of them all. The present Scientific Method is suitable mainly for doing reductionistic science. A characteristic feature of a complex system is that it must be investigated as a whole, and not by reducing it into parts and assuming that if we understand the parts, we understand the whole. For complex systems, the whole is more than the sum of the parts, in a mutually interactive manner. An extended Scientific Method that is effective for studying complex systems will automatically become more inclusive in scope.

Big Data is an inalienable feature of life in modern times. It is already influencing science and many other activities like finance, business, advertising, entertainment, government, warfare, etc. There is a viewpoint that Big Data can make it possible to do science without having to postulate hypotheses/models/theories beforehand. This may well be too optimistic, but there is no denying the fact that the availability of Big Data offers new opportunities for making science progress rapidly, particularly for investigating complex systems. Big Data Analytics can throw up unexpected correlations in the data, which may provide new leads for understanding a complex system. There is already a report that an artificial-intelligence system has been developed that is capable of formulating physical theories by recognizing patterns in complex data sets.

So, we need an extended Scientific Method that makes science more inclusive in scope, that enables science to investigate complex systems by going beyond reductionism, and that incorporates the use of Big Data as an additional tool for doing science (data-driven science). In this book I explore the possibilities and make some suggestions. If insistence on empirical evidence limits the scope of science, then go for non-empirical and experiential evidence also. If the falsifiability requirement of the Scientific Method is too restrictive, then see what can be done to relax it in a carefully guarded and tentative manner. Big Data is offering wonderful new and highly unconventional ways of doing science.  The training of scientists must now include awareness of this option, as also an exposure to the basics of how such research should be done.

Vinod Wadhawan

New Delhi (January 2025)


Preface to the Second Edition

In this edition I factor in some of the feedback received on the first edition. There are several alterations and additions also.

In the first edition I took a somewhat ambivalent position on the various competing models and theories of consciousness. I just described the various approaches, and said by implication that this so-called ‘hard problem’ of philosophy is far from resolved. In the present edition I try to defend the thesis that Big-C consciousness is no big deal, and that we may soon be living in a world in which our consciousness is extended to something far higher and better than the present level. I take an explicitly materialistic view that consciousness is an emergent property. We humans are creating so many types of sophisticated ‘artificial’ consciousness in robots. And all these are emergent entities, having emerged in material systems. It is thrilling that our Scientific Method for interrogating Nature has brought things to a stage where we can try to shape the kind of future we want, and the various kinds of consciousnesses we would be surrounded by.

One of the important tenets of the Scientific Method is that each word or phrase used in science should convey the same meaning to all. The most problematic word in this context is ‘consciousness’. There are so many types of them (beginning with functional or clinical consciousness onwards) that almost never should this word be used without a qualifying adjective. This is an important requirement for making science more inclusive in scope. But even if we do this, one more problem crops up, this time from a competing theory: In the Indic approach to knowledge, consciousness is a class apart, something not at all an emergent entity. Let us call it ‘Fundamental consciousness’. It is regarded as fundamental to everything else:

·        Fundamental consciousness is a transcendent category, distinct from material matter.

·        The physical universe and fundamental consciousness are complementary, like two sides of a coin.

·        Fundamental consciousness is like a light which illuminates the mind. It is not an object. It is the searchlight with which we see objects in our inner or outer spaces or through the medium of the senses. It is the perceiving subject.

In the existing science, we know about only four fundamental forces or interactions (gravitational, electromagnetic, strong nuclear, and weak nuclear), and there is no place for anything like fundamental consciousness and the interaction(s) relevant to it.

In this edition I bring out the fact that our prominent theories of consciousness, as also the answers provided to the uncomfortable questions raised by the current developments in AI-related research, have resulted in the recognition of a whole spectrum of types and degrees of consciousness. It is conceivable that the random forces of Nature just happened to lead to the emergence of our type of neural-network-based consciousness, and that other types of consciousness are also possible.

I have added a section on afterlife. There is no afterlife, no rebirth. Subhash Kak has floated the interesting idea of epigenetic ‘DNA memories’. If confirmed, it may well explain why some people behave as if they had a previous birth.

Vinod Wadhawan

New Delhi (November 2026)



 

Tuesday, 16 June 2026

The Wonder Car for India is Here


Oil imports have a big impact on the economy of India. Any development that reduces this dependence on imports is bound to be big news. The exciting news is that we in India can now run cars on fuel that is a mixture of petrol and a whopping 85–100% of ethanol (ethyl alcohol). 

Brazil already runs cars with 100% ethanol. And now Flex-Fuel Vehicles (FFVs) (cars and motorcycles) will soon be running on Indian roads. E85 is the name given to the fuel with 85% ethanol and 15% petrol. That’s a tremendous saving on petrol, and a big boost for the Indian farmer who can grow sugarcane etc., and produce ethanol by a simple fermentation process, followed by distillation. 


It was interesting for me to learn that the internal combustion engine that runs the car did not have to be redesigned from scratch. It is an adaptation of conventional petrol engines. Manufacturers modify the existing design to handle ethanol’s different combustion characteristics (lower energy density, higher oxygen content, and different vaporization behaviour). So, while the core architecture remains similar, the fuel system and calibration are newly engineered for flexibility and durability. Here are some more details:

 Modified fuel system: FFVs have fuel lines, injectors, seals, and gaskets made from materials resistant to ethanol’s corrosive properties. 

 Adaptive engine control unit (ECU): The ECU automatically adjusts ignition timing, air–fuel ratios, fuel injection, compression, and sensors, depending on the ethanol content in the fuel. 

 Dual-fuel capability: These engines can run on pure petrol, E20, E85, or any blend in between — no manual switching required. 



In India, automakers like Maruti Suzuki, Toyota, and Bajaj have begun developing FFVs for the Indian market, aligning with the government’s ethanol-blending goals. 

Ethanol has less energy density than petrol. Vehicles on E85 give lower mileage. Actual savings depend on your car’s efficiency. 

Impact: Reduces crude oil imports, boosts sugarcane/ethanol production, higher farmer income, lower emissions. A boon for tackling traffic pollution, particularly in big cities. 

Important: Only FFVs can use this fuel. Your current petrol car is not compatible. 

As of June 2026, here’s what’s actually on sale in Delhi that can run on E85: 

Cars 

1. Maruti Suzuki WagonR Bioflex - India’s first flex-fuel car 

2. Price: ₹7.24 lakh ex-showroom 

3. Engine: 1.2L K12N petrol, modified with new injectors, fuel pump, fuel lines, ethanol sensor, ECU 

4. Fuel: Runs on E20 to E100, homologated for E85 

5. Catch: ₹86,000 costlier than regular WagonR ZXi+ MT 

6. Availability: Currently for commercial/taxi/fleet use only. Private sales haven’t started yet. 

Toyota: Minister Hardeep Puri said “Toyota is one of the best-selling vehicles to be operated on E85”. Toyota showed an Innova Hycross FFV prototype earlier, but no confirmed retail launch with price yet. 

Others coming soon: Minister Nitin Gadkari said Suzuki, MG, and Hyundai will launch 100% ethanol-compatible vehicles within the next month and a half. 



Bikes 

Hero MotoCorp Splendour+ Flex Fuel: ₹82,710 ex-showroom Delhi 
 
Hero HF Deluxe Flex Fuel: ₹72,792 ex-showroom Delhi 

Both run on E20 to E85. 

Unlike methyl alcohol which is poisonous, ethyl alcohol is the stuff that makes your drink intoxicating but not poisonous. Desperate drunkards do not spare even cough syrup for its alcohol content. What if they try to find ways to extract the ethyl alcohol from E85?! Perhaps adding a little methyl alcohol will deter them. [On a more serious note, it is nearly impossible to unmix petrol and ethanol completely. Petrol is a mixture of some 100+ hydrocarbons, with boiling points ranging from 30 C to 200 C. And the boiling point of ethanol is ~78 C. Any fractional distillation attempt will be very messy, even dangerous. A further problem is the formation of 'azeotropes' (e.g. between ethanol and some hydrocarbons): They boil together at a fixed ratio, and cannot be split further by distillation alone.]

Friday, 18 April 2025

Review of Vinod Wadhawan’s book “Revisiting the Scientific Method”

(This blog post is written by Mr. P. Menon)


In the book Revisiting the Scientific Method, renowned physicist and thinker Dr. Vinod Kumar Wadhawan presents a deeply compelling and timely re-evaluation of the principles that have long governed scientific inquiry. As a former scientist from the Department of Atomic Energy, Govt. of India, and a respected author on complexity and material science, Dr. Wadhawan brings both intellectual depth and philosophical clarity to his latest work.






The book’s central thesis — that the traditional scientific method, while immensely successful, must evolve to accommodate the study of complex systems and nonphysical phenomena like consciousness — is both bold and convincingly argued. Dr. Wadhawan lays out the classic 8-fold path of scientific investigation with clarity, from asking the right question to the falsifiability requirement. But where this book shines is in its critical examination of the limits imposed by overly rigid adherence to these traditional norms, especially when applied to emerging fields of study.

 

Through lucid prose and well-researched examples, the author illustrates how modern science needs to expand its toolkit. The role of Big Data, the inadequacies of reductionist thinking, and the need to incorporate subjective and experiential knowledge — especially in the context of studying consciousness — are explored in depth. The book’s openness to philosophical thought, including insights from Eastern traditions and thinkers like Subhash Kak, is particularly refreshing. It shows a willingness to blur the lines between science, philosophy, and spirituality without compromising intellectual rigor.

 

The sections on artificial intelligence and consciousness are particularly thought-provoking. Dr. Wadhawan deftly navigates the frontier where machine intelligence meets human awareness, cautioning against simplistic assumptions and advocating for a more nuanced scientific dialogue. His consideration of "superintuition" and the creative process, as seen in historical figures like Ramanujan and Tesla, adds a humanistic and almost poetic touch to an otherwise methodical narrative.

 

What makes this book especially valuable is its humility and openness. Dr. Wadhawan does not claim to have all the answers. Instead, he provides a framework for asking better, broader questions and invites the reader — scientist, philosopher, or curious layperson — to engage in the process of rethinking science itself.

 

In sum, Revisiting the Scientific Method is a masterful synthesis of science, philosophy, and forward-thinking inquiry. It is a valuable contribution to contemporary scientific literature and a call for a more inclusive, expansive, and empathetic approach to understanding reality. Dr. Wadhawan’s work deserves appreciation and engagement from all who care about the future of science and its role in human progress.


Written by 

 P. Menon,

ashirwadmenon@yahoo.co.in