What is common knowledge in your field but shocks outsiders?

More than half the CO₂ emissions of the industrial age have been dumped into the atmosphere since 1990.

@davidho dragons love tacos

and

a four year old who doesn’t know the alphabet or numbers above ten but exerts boundaries such as “I’m using this. You can have (the) next turn” is more likely to succeed in school than a four year old who can spell and add but doesn’t know what to do when someone else wants their toy

@chaspinrad @davidho this is becoming more obvious to me as I've shifted to homeschooling my autistic child after his funding for TA support was cut. The Ministry of Education seems to think that his advanced reading level means he's "fine", never mind his poor emotional regulation and delayed social skills 😔