Why don’t we just call the 2000s the “ohs” and the 2010s the tens?
I assume everyone saw Adam Conover’s video on decades as a concept going away because it was hard to name the last two. But “the ohs” and “the tens” seem like the best possible choices to me. “Hey remember back in the ohs when everyone hated bush?” “Remember back in the 10s when dubstep was a thing?”