His intelligence is high enough to have an eidletic memory

I scanned the crowd quietly for a minute and went down the mental list I’d made previously. My Intelligence was high enough to memorize something after seeing it once and I was pretty sure I’d seen most of the town. The list dwindled quickly as I looked over the crowd, but a few names remained. I waited for a moment as a few other people gathered near the ship, late arrivals, and struck them off the list.