One solves problems and the other is a computer scientist.

It’s a lowly profession for those less cunning, scarcely worthy of mention alongside the intellectual ballet that is the domain of software and computers.

Wasted his time learning to help people see, now he can't even kick ass at Mancala! The rube!

It’s a joke. As in “CS vs Optometry, who will win in the mancala battle of the century?!”

> This was a classic match up

"classic" here is tongue-in-cheek