For the record: Quantum mechanics does not deny the existence of objective reality. Nor does it imply that mere thoughts can change external events. Effects still require causes, so if you want to change the universe, you need to act on it.
Interpretation
This quote emphasizes the importance of action in the physical universe, countering misconceptions about quantum mechanics affecting reality through thought alone.
Lawrence M. Krauss addresses a common misunderstanding of quantum mechanics, emphasizing that while the theory has profound implications for our understanding of reality, it does not support the idea that simply thinking can alter external circumstances. Instead, he asserts that change in the universe necessitates tangible actions grounded in the causal relationships that govern physical laws.
In practice
In a scientific seminar discussing the philosophy of quantum physics.
The one experience that I hope every student has at some point in their lives is to have some belief you profoundly, deeply hold, proved to be wrong because that is the most eye-opening experience you can have, and as a scientist, to me, is the most exciting experience I can ever have.
If our species is to survive, our future will probably require outposts beyond our own planet.
The ultimate arbiter of truth is experiment, not the comfort one derives from one's a priori beliefs, nor the beauty or elegance one ascribes to one's theoretical models.
I cannot stress often enough that what science is all about is not proving things to be true but proving them to be false.
To the extent that we even understand string theory, it may imply a massive number of possible different universes with different laws of physics in each universe, and there may be no way of distinguishing between them or saying why the laws of physics are the way they are. And if I can predict anything, then I haven't explained anything.
The illusion of purpose and design is perhaps the most pervasive illusion about nature that science has to confront on a daily basis.
Relativity challenges your basic intuitions that you've built up from everyday experience. It says your experience of time is not what you think it is, that time is malleable. Your experience of space is not what you think it is; it can stretch and shrink.
Japan is a model already to the lie that economic growth is the key to our future. If they can really show an alternative to nukes and fossil fuels, then they will be the poster boy for the renewable energy for the future.
Ants make up two-thirds of the biomass of all the insects. There are millions of species of organisms and we know almost nothing about them.
I was taught over and over again that the accumulation of random mutations led to evolutionary change - led to new species. I believed it until I looked for evidence.
It seemed, indeed, that the study of light-scattering might carry one into the deepest problems of physics and chemistry, and it was this belief which led to the subject becoming the main theme of our activities at Calcutta from that time onwards.
I had as much time to prepare for that moon landing as NASA did, and I still was speechless when it happened. It just was so awe-inspiring to actually be able to see the thing through the television that was a miracle in itself.
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