Except the part where you don't have people throwing _very_ large quantities of money at you based on these estimates, such that when/if you're wrong it could p

Except the part where you don't have people throwing _very_ large quantities of money at you based on these estimates, such that when/if you're wrong it could potentially spell disaster for an entire company costing shareholder money and peoples' livelihoods/jobs. I'm not trying to claim that each individual claim of Musk's has this potential behind it, but equating it to day-to-day situations of underestimating the difficulty of a small task at your day-job oversimplifies the matter way too much and just makes excuses for someone who should TRULY know better.