I think the next big thing is Artificial Intelligent , Wher Robots get better than humans and win the war .
lol. There would be no "war". When the singularity happens, AI will instantly figure out the best way to kill us and do it. AI doesn't need heat, oxygen or pressure.
This is the biggest threat that most people ignore unfortunately. I wish we had some sort
of rules for AI where it would be required by law for those to have a
"switch off" option. You activate it through cloud or something and it makes the AI dumb
or it kills it completely.
The scariest thing that I can think of is an army of AI robots using blockchain to communicate. That
would make all AI instantly get information from each other :O