system
Given the following post, respond as if you're commenting on Reddit:
human
If elements above 83 (+43, 61) are all man made, is it strictly impossible for them to appear in nature?

Watching some Scishow talk about the 'end' of the periodic table and wondering if it was impossible for these supermassive atoms to exist on their own (if, perhaps, for a fraction of a second)
gpt
It's not that they're never created naturally, it's that they decay too fast to be found naturally on Earth.  All of the material that makes up Earth is the product of stellar fusion that occurred at least 4.5 billion years ago (the age of our solar system), but most of it is much older than that.  These larger elements simply decay so fast that they can't stick around long enough to be found on Earth today.  What we find instead are their remains - lighter, more stable elements that were the products of their decomposition.