He rested his chin on the heel of his palm, the science stuff had always been more Aiden's thing than Danny's but he knew a decent amount and he followed most of what Stanley said.
Ignoring the science for a moment - he'd need to research into the theories a little first. "So why two years? Where have you been?" He asked curiously, "You said you had a girlfriend, she wouldn't be so mad at you if you weren't MIA for so long, I'd bet."