Zuckerberg seems sincere and does jiu-jitsu on his own as a hobby. I believe he wouldn't agree to a staged fight. There may be rules/stipulations in place to

Zuckerberg seems sincere and does jiu-jitsu on his own as a hobby. I believe he wouldn't agree to a staged fight. There may be rules/stipulations in place to make Musk actually agree that would make it a mockery of MMA though. I don't think Musk's actually interested, he seems utterly insincere about fighting but loves attention so he'll keep teasing it. But really, who knows?