Were the Winter Olympics recent? Not to the E. coli living in your gut.
The Late Heavy Bombardment (LHB), or lunar cataclysm, is a hypothesized astronomical event thought to have occurred approximately 4.1 to 3.8 billion years (Ga) ago,[1] at a time corresponding to the Neohadean and Eoarchean eras on Earth. According to the hypothesis, during this interval, a disproportionately large number of asteroids and comets collided into the terrestrial planets and their natural satellites in the inner Solar System, including Mercury, Venus, Earth (and the Moon) and Mars.[2] These came from both post-accretion and planetary instability-driven populations of impactors.[3] Although it has gained widespread credence,[4] definitive evidence remains elusive.
This is after the meteorite killed "all" the dinoraurs.
Also, North America was joined to Eurasia, South America to Africa, Australia to Antartica, and India was a huge island in the middle of the "Indic" ocean.
Am I right?
Here’s one article about it: https://phys.org/news/2016-10-apollo-era-evidence-late-heavy...
The “definitive evidence remains elusive” from your quote is probably a hint: the LHB was a result of getting carried away extrapolating from the Apollo samples due to an early dearth of data, not a real phenomenon.