And in 2 or 3 mothers, we’ll all be forgotten
The human mind has a difficult time grasping time longer than a few generations. According to this Reddit user, the average generation is about 25 years based on the average age a woman gives birth. This means that every 100 years is four generations.
So, to look back 2,000 years, you’ll only have to check your family tree of up to 80 generations or so to find who your ancestor was in year 0. To take it further, you’ll only have to go back 480 generations to learn of your very first bipedal ancestor. We don’t know how many generations you’d have to trace to find out which fish decided that breathing water wasn’t good enough.