I’d also add that the reason why the mean will be larger than the median is usually hard to discern for any specific situation. This foments bikeshedding debat

I’d also add that the reason why the mean will be larger than the median is usually hard to discern for any specific situation. This foments bikeshedding debates that are a mix of business pressure to favor uninformed estimates and disagreements about which possible sources of surprises or hitting a wall are most likely. As soon as you mix this with a formal estimation system like Agile (yes, even the platonic ideal ‘agile’ too), it creates a snowball effect of time wasting because overhead is so frequently required to resolve debates and placate business pressures for estimates.