Psychology videos of change blindness and inattention blindness are fun. For instance, Simons and Levin's "door" study swaps conversation partners in the midst

Psychology videos of change blindness and inattention blindness are fun. For instance, Simons and Levin's "door" study swaps conversation partners in the midst of their getting directions. Swaps of similar people are less likely to be noticed, but sometimes even very dissimilar (different gender and race and height) swaps aren't. Though to be fair, there's often a misdirection task and/or object. This evening there was someone seemingly "stalking" around on the subway. Perhaps plainclothes, or crook, or artist, or just someone a bit unusual. Getting off, and pondering the ethics of mentioning it, I realized it was a non issue, as I couldn't give a useful description of someone I'd been puzzled by for several minutes. Later, walking down the street, looking at someone, looking away and generating a description, and then looking back to check it... it's clearly not a skill I've developed.