Six feet, three inches ...

[haele]

12. People shrink when they age. Especially when they're carrying extra weight.

Just being a chonky person with minor scoliosis and carrying about 30 lbs more than I should have, my back and knees compressed enough I lost between an inch and a half and two inches from around the age of 40 to 60.
At 62, I had knee surgery on both knees, there went about another inch.
I'm still losing fractions of inches as I've got disk degeneration disease and I'm only 66.
I've lost 4 inches in total since the age of 40.

I don't think someone as vain as *rump will admit to losing any height as he ages. He's got problems admitting his hair is basically wisps and there's sag around the waist and ass, losing height would be unthinkable to a Golden Boy like him.