"Explicit" as in implicit type conversion? Just right now got bitten by that:
0: looks like a zero, tastes like a zero, but somewhere along the line got converted to a
string and therefore it's suddenly True, not False.
Another very nice argument: "Perl looks confusing to outsiders coming from other
languages". Confusing like:
>>> i = 0
Whoops! What happened here? "++i" is obviously legal Python code with just one
unexpected effect: nothing. It just does nothing. Endless loop, here we come.