My second thought was that 10,000 years from now some follow-on replacement for humanity will be staggered at the 30 billion dead bodies we put into the ground. They'll frequently be hitting grave sites when they go to dig into the ground.
Most bodies buried in most places won't be so well preserved though. In Europe the average grave will be dug up and replaced 20-30 years after burial to make space for the next one.
How do you mean?
I come from a part of Europe that takes death seriously and I walk past 250 year old graveyards every day. Saw a fresh grave in one recently
I can go visit the graves of the last 5 generations of my family
edit: but I wouldn't phrase that as "not taking death seriously"
Competition is fierce to get into some of the ancestral graves.