Disclosure Project - Aliens UFOs

[ignoramus]

The odds that no life evolved anywhere else is almost certainly zero.
Since all life evolves from less complex life, I'm of the opinion that for a species to become technological, it must have attributes like we have.

We use 2 legs to be mobile (minimum requirement)
2 eyes for 3D (minimum requirement)
2 hands for doing the technical stuff
we have hardly any redundancy built into us (minimum requirement of organs)

Isn't this how a land animal would evolve naturally? Using the bare minimum needed to survive.

Then, sure there are planets maybe entirely submerged in liquid. Would their environment even allow them to evolve technologically?
Whales and dolphins are intelligent, but they can never physically build nuclear reactors, etc

Then we can let our imagination run wild with all sorts of exotic gasses and other molecules which would kill us, but life has evolved anyway on that planet.
I'm not sure whether life can evolve beyond a certain level in very harsh environments.
Maybe the goldilocks zone for nature to create intelligent conscious life is extremely fragile.
Maybe out of the squillions of planets with life currently out there now, only a tiny percentage will be in an environment which will allow them to become technological?
Which makes intelligent life in our universe even more remote.

Just throwing it out there...