you'd play against how they've been playing in the past, recognize that you need to shift in some way because they may shift as well. >> So, yeah, that's a great question. We actually did not, so one of the interesting things about humans playing poker, is that they're actually really good at exploiting. They are phenomenal at it. Way better than computers are currently. So, we actually did a competition against them in 2015 where we lost, and we would sometimes change the bot that they were playing against between days.