Capacity of human brain
Per a scientific study, The human brain has an estimated storage capacity of 256 exabytes (or 256 billion gigs), the equivalent of 1.2 billion average PC hard drives, enough CDs to make a stack which would reach beyond the moon.

Do you have any clue how much percentage out of that a normal person uses?
Not even 3% of that 😁
A genius like Albert Einstein may have used less than 10% of his brain.
Isn't that amazing; what's your take on this fact?