Maybe his brain is oldolds as well...
damn near everything about me is done, but I am autistic when it comes to bodyweight. somebody will enter my gym for the first time ever and talk about wanting to gain weight. even if they are in a jacket I will say 'right now you are 216? they will say i'm close but off about 4 lbs. I tell them to get on the scale and they will be the exact number I said 9 times out of ten. I don't know how I do it, I dont' actually try to calculate or estimate, a number just pops into my head and it is almost always right on