Finitude of Knowledge

I am a school student I have certain doubts about human knowledge

One human has finite amount of knowledge There are finite number of humans on earth at present And in past too there have been a finite number of humans

There is a certain point of time from where life began on earth And as the life forms evolved Modern Humans came into existence

Hence in both space and time Humanity as whole is finite

Therefore I concluded that collective knowledge (everything known)is finite But enormous and continuously growing.

The collective ignorance or the unknown (things which no one knows and has known ) is probably infinite as I speculate.

What do you all think Am I right

I imagine all of collective known knowledge as a sphere Which is finite which is depicted by boundaries or surface of the sphere And the sphere is growing . Uneven growth in all directions 4pi steridian.

I am basing all my reasonings and conclusions On the belief that evolution happened And the story of past of universe That I have studied in science is true.

And is there consensus on this In academia and in general society

Correct me with explaination If I am fully wrong or partly

And affirm with a yes if I am right

(Knowledge is what is known but still I Wrote known knowledge , dont mind it )

Thanks for reading this