5) How Does Lex Luthor Know How Krypton Technology Works?
Lex Luthor is a genius. We know this because he’s played by the guy who pretended to be Mark Zuckerberg in The Social Network, and because he constantly talks about things you couldn’t possibly understand in a really condescending manner. Is Lex Luthor such a genius, though, that he’d be able to make his way into a downed Kryptonian craft and immediately start making things happen? Things that only native Kryptonian experts would know how to do?
Once inside the cruiser, Lex immediately gets to work. He manipulates the system so it works exclusively at his command, then follows that up with some gentle Kryptonian/human gene splicing, which results in crappy CGI troll-beast Doomsday being birthed into the world. It’s not like there are manuals for this stuff, so how exactly does Lex know what he’s doing? Even relatively basic Earth technology requires a bit of training in advance.