I feel like it wouldn't be that hard for a person from today, especially someone who keeps up with scientific and technological progress, to quickly get up to speed with the world of 500 years from now... but I might be wrong.
A) you're just in an unlikely position
B) the population will rapidly shrink and never recover
C) this is the most "interesting" time in history, and there are so many simulations of it by the people of the far future that we are more likely to exist in this time.
Although echoing the opinions of many other commenters, I believe the early 20th century probably takes that crown.
And it's a daft argument because if you don't have a soul, you are the product of your environment. You couldn't be born as someone else, or somewhere else, or somewhen else, just like the River Amazon couldn't be on Mars or in Pangaea, because it's defined as "the thing in Brazil, currently". You couldn't be born in the Wild West because you are defined as "the child of your parents" and they weren't there, then. You didn't end up /in/ that meat body, you /are/ that meat body.
(And if you do have a soul, and they are randomly assigned to meat bodies, this argument is still like saying "roll two dice, the most likely combined outcome is a 7, I got two dots and one dot so that must be what 7 is")