The article says "That's why I've spent way too long thinking about the optimal arrangement of keys on a keychain, to reduce egress time to a minimum.
If you need to find your keys to get out of your house, that's not ideal in an emergency. I think the author is talking about ingress, getting into one's home.
If you need to find your keys to get out of your house, that's not ideal in an emergency. I think the author is talking about ingress, getting into one's home.