So who's been counting? "Planet and moon have been hit by more asteroids in the past 290m years than at any time in previous billion" Crikey, fancy tha . . . https://www.theguardian.com/science/2019/jan/17/asteroid-strikes-earth-moon-threefold-dinosaurs
I wonder what caused the increase in asteroids? I suggest it was something that caused many Kuiper Belt objects to fall into the inner solar system.