"Remember array starts from 0" he said

wise words

And then there is that retarded Julia language...

@johnyCodewalker yea, if you are trying to design a programming language for a mathematician instead of a programmer, which is already a weird decision in itself...

But yea, there are some valid reasons I guess.

It is very logical to start from 0 if you think how memory position of an array item is calculated:
position = offset + index * size

But I can't figure out other reason to start counting from 1 except that it have been thought to you when you were young.

@illusion466 Most mathematicians I've seen start summation from i=1, that seems like a reason.