As a twin, I found this to be interesting.
“When he’s going through a bad patch or when he is thinking of something, I can feel it," saif Mo. “I ask him what happened and he’ll tell you, because I can just feel it.”
I'd love to see someone have the twin brother run a time trial to see how fast/slow he is with zero training.
Also how much heavier is he? Has he ever tried running?
https://indiatimespost.com/sir-mo-farah-can-feel-when-his-identical-twin-is-having-a-tough-time/