"I am still beating him in arm wrestling, "
I have arm wrestled twice. Once in USA where several traders put up bets on a big bulgarian guy easily could beat me in arm wrestling. I got 3 to one in odds or something. I had never arm wrestled before. They lost their bet and where shocked.
Second time when I visited Russia. A big guy wanted to impress some girls and betted he could beat me in arm wrestling. He had never lost before. He wrote to me years later that he still not could understand how I could beat him. He was regularly arm wrestling and had never lost before.
I am not joking!
I must conclude arm wresting has little to do with size, these guys much bigger than me. Likely something to do with ability to align atoms in the arm with gravity force. In Russia I was >40, and the guy I wrestled was about 23..
"I see it all the time on the judo mat: guys in their 40s/50s who think they are 23. "
off course we have much more strength as know how to utilize the forces of nature (and muscles hidden inside layer of high energy)! (no one have ever asked me to arm wrestle in Norway, after all an old civilized viking country)
Kyuzo Mifune "God of Judo" 75 year old Judo Master destroys students