As if someone flicked a switch in the distance, Sans' eyelights blink back to life as she speaks. Curiosity mingled with thoughtfulness, culminating in a cocktail you couldn't order at this particular bar.

One of the many downsides to giving up is the way thinking stopped mattering. Problems were accepted as permanent and trying to solve them became a waste of energy. Things were what they were, with no drive to change and alter them in any way. It's the way Sans made a conscious choice to live his life. It's the way he assumed he would die -- the way he did die. Shrugging and shuffling away, refusing to give someone who thought they were above those intangible inevitabilities the satisfaction of watching him turn to dust.

Which made hearing Alice work through conceptualizing something wholly new... well, it activated a part of his mind long since left dormant.

"Making a new timeline, huh? Do you know how much energy that would take?" Sans took another drink. "... 'Cuz I don't. Not without doing a lot of math. But experience tells me somewhere between a hell of a lot and a metric butt-ton."

Sans winks, tipping his drink in Alice's direction.

"Hope that's not too much jargon for ya."