"Scientists aren't perfect, just peer reviewed.""Eye of Sauron Observatory", featuring "Sauron's Other Eye", 16" dob, conical Royce mirror.
Quote:Darwinism (Capitalist England): you are a 14 year old working in horrible conditions, with no future in a coil mine in Victorian England. It's because you are of low status, bad genes, bad luck, and there is nothing you can do about it, for yourself or your children, unless God(and God didn't show much goodwill for yourself, so...), or Chance, decide otherwise. It sounds pretty much like a curse to me.
Greg - Celestron SkyScout 90mm refractor & planetarium
Quote:That's a bit of a stretch. Darwinism says you get the genes you are dealt, it doesn't say that you can't improve your lot in life
Quote:Two twins with identical genes can still develop very differently. Just because lifting weights won't give your offspring better genes for strength doesn't mean it won't improve your strength. Same for exercising your cardio system and your brain, for that matter
Quote:The bigger issue with the Lamarckian version of changing your gametes is that there is no simple way to know what changes to make. Let's say you live in an environment where being stronger would be an advantage. What genes do you change? There is no simple switch that says "change this base to A for more strength or T for less strength". There is no way for your gametes to know what changes to make to match the environmental need.
Quote:In the example of exercise, your body has a signalling system that detects what is being used, and up-regulates whatever is used. That's much more flexible than a hard-coded system for "stronger". What happens if your children end up living though a famine, where resting and conserving energy is the better strategy? If they get hard-coded to build lots of muscle despite not exercising themselves, they will starve to death. With an adjustable system, they can respond to the change in the environment.
Quote:Now if that cell in organ A is a stem cell that could travel to the testes and redifferentiate to produce sperms, providing that cell has kept the RNA memory (a') of its previous life in organ A, we can imagine the RNA a' can then interfere with the DNA replication of gene a during meiosis. And similarly, another stem cell from organ B moves to the testes, where it produces sperms which recombinate heavily in gene b.
Quote:How did this thread get from aliens blowing up stars toDarwin, DNA, & evolution?
Quote:You just had to follow. Who can tell me here who we came to talk about evolution?
Quote:Quote:You just had to follow. Who can tell me here who we came to talk about evolution? What?
Cactus Patch Observatory / 14" LX200
"The four points of the compass be logic, knowledge, wisdom, and the unknown. Some do bow in that final direction. Others advance upon it. To bow before the one is to lose sight of the three."
Quote:As our abilities to observe the universe advance, the chances of our finding other civilizations unfortunately do not increase, since we see distant realms only at earlier times, before there was time for our remote kindred intelligences to learn to engineer supernovas or whatever. So even if we are sure they are there, we will never actually observe them. It's a pity.
--------------------- --------------------- "Nothing exists but atoms and empty space. Everything else is opinion." Titus Lucretius Carus 99-55 B.C.
Quote:Engineer a supernova? Engineer a supernova? That would be quite a feat, if possible. Except that it isn't.
"After the Laws of Physics, everything else is opinion" -Neil deGrasse Tyson
Elmira-Corning Astronomical Society
Quote: That's beside the point. If it's not possible, that is just another reason that we will never observe other civilizations.
Quote:The likelihood of our contacting an alien intelligence (perhaps slim to none, but who knows?) and the ability of any intelligent beings to trigger a supernova (impossible) are completely unrelated.