Miscellany (General)

by David Turell @, Tuesday, September 14, 2021, 16:53 (38 days ago) @ dhw

Function in cells

dhw: If cells can change their function, it is worth considering the possibility that cell communities can autonomously change their function in response to new conditions. This is already apparent from the changes by which some organisms adapt to conditions that kill others. And so theoretically, it is possible that the cell communities not only adapt, but can also invent (i.e. change their function).

See below, but cells normal function is to change within required limits for equilibrium requirements.


DAVID: Cells are fixed in their functions […]

dhw: But stem cells are not fixed. They can develop into different types and different organs. That is why I am suggesting that the process described above may be highly relevant to the manner in which evolution works.

DAVID: But in embryology certain stem cells are programmed to become different parts of the body or receive differing stimuli to guide their change.

dhw: Differing stimuli would be the key: changing conditions might demand or allow major changes of function.

All we know in this are is epigenetic minor adaptation s


Covid and politics
dhw: I’ve struggled through the whole article, but as is so often the case with Feser, I have difficulty putting all the bits and pieces together. There is no fixed knowledge on the best way to tackle Covid. Scientists themselves are divided. Whatever methods are used will create problems for some members of the community. It’s politicians that have to take the decisions, so of course the issues are politicized, and if scientists and politicians disagree among themselves as well as with one another, of course there is scepticism towards all of them. And that’s without even considering the rival but perfectly legitimate concerns of the economists, sociologists, educationalists and health services. It’s the usual problem: your left-wingers and your right-wingers, your believers and your unbelievers, all think they know best, and they just cannot see that there is more than one point of view on any issue that has not been definitively settled by a known truth.

DAVID: […] The problem is that liberal or conservative is in the brain of every scientist, so factual thought is constantly distorted.

dhw: If the solution to a problem, or the answer to a question, is unknown, you will get different solutions or answers – not just from liberals or conservatives, theists and atheists, but also from many other perspectives, as listed above. Until there is actual proof, it takes a good pair of blinkers for anyone to assume that theirs is the right solution/answer.

We all can agree, get vaccinated.


Consciousness: a universal mind?
DAVID: And my approach is we receive the mechanism of consciousness from the universal consciousness for our brains to use. There is an article that the brain does this as a transducer, an interesting comment.

dhw: Dualists believe that the brain “transduces” messages from the soul, which is part of the universal consciousness, and materialists believe that the brain is both the source of the message and of its “transduction”. I’m afraid the article hasn’t enlightened me!

Just another stab in the dark to think about.


Dragonfly
DAVID: The most efficient flying predator known:
https://youtu.be/iJi61NAIsjs

Different wing muscle controls allows flying backward 360 degree compound eyes and many other wonderful engineering.

DAVID: about 15 minutes is worth it.

dhw: It certainly is! Thank you, as always, for these wonderful wonders!

Thank God, not me.


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