Elon Tasa X, Is It a Coma Man?

Elon Musk has 20 years to live. What would be biggest obstacle that would prevent te elon tasa x, whoever, to arrive to that point? Is it government intirvention? is it? I'm sure elon dying is going to be a humungous obstacle there's got to be some sort of time that has to pass for that mission to continue without him,. even if it was possible. It might lose the core and heart but the missions, as understood now, might last forever.