Oddbean new post about login | logout I think there is a wide margin for "catching up" verbally, in a family that is paying attention. The idea of twin zoomies is hilarious and...a little frightening.
Oh definitely true there on the speech thing. We have speech delays on both sides and we were almost referred at their 15 month appointments to early interventions (us program), so we’re definitely more vigilant than most probably. My 3 year old has a ‘severe speech delay’.