Anyone else tried to study during sleep?
This is something I used to try since like 5th grade. I would never study until like the night before exam. Then i would think about math shit while trying to sleep in hopes that i might be able to practice it while dreaming. But turns out I never dream or not that I remember. Is it even possible to study during sleep,m,
Please keep the discussion nonpolitical in nature. I would like scientific opinions only, preferably those with background/interest in biotech, evo bio and bioinformatics.
In short, is this legit. I can find no issue with it, but there are bigger brains than mine on here.
Can someone explain to me the derivative of sigmoid function? I am reading NNFS and try to derive sigmoid using the rules that book gives.
Here is my answer:
s(x) = 1/(1+e^-x)
which can be written as
s'(x) = (d/dx)(1 + e^-x)^-1
NNFS says (d/dx)x^y = y * x^(y-1) so
s'(x) = -1 * (1 + e^-x)^-2
but online sources say this is wrong and even the book itself contradicts itself several hundred pages later wtf?
Turn off the light, (deflect all lights from destination), connect the starting point and the destination. Or remove all heat from a destination and its route. Etc.
Natural selection alone doesn't explain the emergence of things like limbs, eyes, advanced organs, etc.
Yes you could argue 'eventually those things favoured survival so became dominant' however that doesn't explain the emergence of those things in the first place. You could bash around for trillions of years and not see the complexity for eyes arise randomly.
I don't buy into the creationism or religious takes on the issue either, for one the very concept of a deity is flawed as nothing can be defined as 'god', any level of power is simply relative and would have some origin in technological advancement or evolution.
The most likely scenario thus for the origin of life on earth is intelligent design by a species immensely superior to our own, which may have programmatically ingrained the very pathways for life to evolve into the initial dna on our planet. Given the huge distances involved and the energy it would take to travel, there's a good chance they sent this early dna out via some sort of radio or light signal, seeding it to arise on any suitable planets throughout the universe, and even beyond unto other universes. Our earliest ancestor, that primitive bacteria, could have come from a pulse of light sent out long before our universe even existed.
