The statement is about the viability of learning all gotchas of C++, and to make a credible point on this you just need to know there exists a large number of t

The statement is about the viability of learning all gotchas of C++, and to make a credible point on this you just need to know there exists a large number of them. (Indeed knowing all, or merely many, of the gotchas would speak against the conjecture.)