2+0+2+1 = 5
2+0 = 2*1... it's a symmetrical year!
2*0*... OK, I don't need to go further than that.
2/0/... : it's an infinite year!
[[2^0]^2]^1] = 1
Two thousand and twenty one years since... wait: Two thousand?
What, only two thousand? And twenty one, don't forget.
Exciting.
Happy New Year! Wishing you diversions manifold!