Why humans are smarter? It is by accident. Mutations in
the genes of ape-like animals resulted in the evolution of a
bigger, more powerful brain.
This is the scientific explanation that comes with proof
and evidence.
If you want to be delusional and believe something
without proof and evidence, good luck to you.
Theres no proof nor evidence to your scientific
explanation...besides, even that is just a theory...theres no solid
proof that evolved from apes nor were we smart by accident..just
scientific theories limited to the knowledge we have of science to
explain them