After almost 12~15 years of programming in C and C++, I would give myself a solid “still don’t know enough” out of 10.

You forgot that beauty - “undefined behavior”!

Memory-safety can guarantee only so much safety! C++ can still blow up in your face, even with all the alleged memory-safety built into C++, thanks to all the UB traps in C and C++.

Rust is the closest language that has no such “gotchas”.

Meh, I never need more than 2G usually and that too only when Firefox is running.