And he could squat 600 lbs, when he was younger of course. https://media2.wnyc.org/i/620/599/l/80/1/Sacks_Lifting_dr_squat.jpg https://media2.wnyc.org/i/620/59

And he could squat 600 lbs, when he was younger of course. https://media2.wnyc.org/i/620/599/l/80/1/Sacks_Lifting_dr_squat.jpg https://media2.wnyc.org/i/620/599/l/80/1/Sacks_Lifting_dr_sq... That's not a trivial weight.