DaveC426913's latest activity

What you wrote is not a fact; it is an opinion. You can tell it's an opinion in the first few words: You say "may well be" because you...

Not all species need to adapt in order to pass on their genes. The world goes through periods of great change, but it also has periods...

Which is why we use math. Math is not ambiguous. And why we don't concern ourselves with the semantics of words. Words are ambiguous...

There is no one single definition of "particle" in physics. The paper @bhobba linked to talks about one popular meaning that can be...

Because they're using different definitions of ordinary language words. That's why we don't do physics using ordinary language. We do it...

Well, now I'm confused. Bosons do not obey PEP. He4 is bosonic. Therefore He4 does not obey PEP. Checks out. I guess not obeying PEP...

While not definitive, one might make a good start by grouping all things into either fermions or bosons. Fermions obey the Pauli...

Universe is not a mathematical concept. It is a word whose meaning depends on the context.

This is just an issue of semantics. If the context of a given discussion provides ambiguity in what, exactly one means by 'universe'...

Gravity, AKA spacetime curvature, is a thing in the universe, but it is not - itself - matter. But the bigger, easier answer is - as...

The term is descriptive, not prescriptive. i.e. just because we define something one way at some time doesn't mean nature is obliged to...

Are nuerons a requirement for ijntelligence? Does this apply to, say, alien life? It's largely a fanciful, philosophical exercise but...

As one does. :wink:

: It would be better to just read what physics does say about photons, than to you make your own assertions.

For future reference: PF does not allow personal theories. PF supports established, peer-reviewed standard model science. That does not...