predictions, for so far in the future they are most likely untranslateable:

For a significant part of the universe, we (homo sapiens sapiens and descendants) will be known colloquially (and scientifically in at least a few latin equivalents) as "The Onion Eaters" due to the ubiquity of that humble plant in our food planet-wide (all onion relatives here included)...

To another subset of the known universe, we'll be known as "The Egg Eaters" for similar reasons. For this group, many of them will use this fact to terrify their children at night...

We will accidentally poison the Nth alien ambassador to human sub-space by using parsley, basil, cilantro, or some other common herb in the dish served in their honor, through a completely unpredictable allergy to the herbs of the human kitchen garden...