The onset of the future...
What event do you think [IN YOUR OPINION] will mark the onset of the "future". Try things that aren't obvious like giant robot suits and space colonies.
So far I got:
The day when the paper thin screen costs less than an actual sheet of real paper
The day we finally grow meat on plants.
The day we can take a over the counter shot to instantly get rid of a headache, with no side effects.
The ability to regrow limbs.
A toaster thats internet ready.