On the road to gigantic brains

Now, in order to turn into big brains, we know the first quick way which is genetic engineering, but that needs perfecting first and will probably take another millenia, and then there is the extra long way which is natural evolution which will take some interesting courses.

First, the human brain will eventually become bigger, either the fetus or the child development of the brian. If the brain gets bigger while pregnant, theres no room and will have to be incubated by outside means... its only logical. Also, the humans will lose there hair, body size, nails and even the feet etc.. all the useless stuff(ill explain the feet later) We do not need these things to survive and theyre only a burden, except for some. (These future humans im describing kind of look like the depiction of aliens(conspiracy theory))

This will take thousands and thousands of years, but its just a theory of what is going to happen assuming genetic engineering doesnt exist.

If the brain of the fetus enlarges, then they cannot fit nor come out of the mother etc... but if the brain gets bigger due to chemical means when the child is growing, then nothing will change.

The people of the future due to evolution will have access to brain power that they dont need feet, therefore, just lose it. They can levitate or float to there destination. Sounds cool huh?

Then, they will slowly lose body mass from the bottom of their bodies upwards until theyre just floating brains who are self-sustainiing and orb looking. What do they need organs for? Psychological power is the key to the future.

This method will probably never happen due to its extremely slow process.