Being able to recognize ones self in a mirror ( which a dolphin supposedly can) is much different that being sentient or "self aware".
@Bhs and @Hannibal
How would you guys define "sentient" and "consciousness"?
IF all our thoughts etc. were created in our brain by neural cells - would consciousness be possible?
There is no need for intelligence in evolution, the supposed process itself has no intelligence, no desire to create or anything of the such.
You wrote this in the other thread already, but seemingly you missed my answer:
Evolution has no "need" or "desire". Evolution is a process; it has no desire to create intelligence neither has it a desire to not create intelligence.
In all reality what species would you rather be for survival? Humans or cockroaches? Evolution would choose a cockroach...Breeds faster, body is almost indestructible, can eat anything and everything etc etc etc. Simply physical traits trumps mental all day long if the evolution story were true.
Looking around, I'm pretty sure we humans are doing really well at surviving currently. Anyway, evolution is not as simple as you may think, it has a lot to do with niches, coincidence and natural selection.
However, with that said, why would evolution choose to push a single celled organism further? There is no purpose..
As I have said, evolution does not "choose", it's a process that just happens and is limited by physical boundaries but not by "purpose" or "choice".
Plus what wrote the laws on evolution? It didn't just exist or appear...
I'm not sure what you mean with that, but I think "laws on evolution" would just be made by humans to describe a natural process.
If you want to go deep, you're getting into philosophy (why is gravitation attracting? Why are our physical laws true?).
I see code that was already written, and is made to adhere to a plethora of laws. Seeing we cannot produce anything further than adaptions, and ever time we see information added it is degenerative, I feel solace in my decision.
Source?
E.g. in the metabolic cycle we do have enzymes that are very simlair to those in "simpler" organisms, but ours are a bit more complex and thus efficient. How would you explain that, except for added information?
(Right now I cannot give you a source on that, but I'm sure you can find stuff about it on google. Or maybe I'll search for it later if you want and if I find time for doing so)
Some super simple change of DNA that results in an evolutionary advantage would be sickle cell anemia.