".... please, just Epsilon. 'Young' would imply I age, which I do not. Not in that way, at any rate." He smiles, faintly. Possibly ruefully; possibly just with a touch of self-awareness. As with many of his expressions, this smile is ambiguous, which is... not an accident.

However--

"I think I would qualify as 'a synthetic,' yes. Or I did. I'm more the exact opposite now."

There's a dry undertone.

Yes, he's a robot. Yes, he's a tree. Yes, he has a sense of humour.