IMO “sky event” refers to tarmac meeting between LL + BC *OR* secret meeting between Kim Jong Un & POTUS the night before the formal summit in Singapore recently. Or something else ;)
Was just watching dvr of POTUS in Montana “BIG SKY COUNTRY”.... and he mentioned that phrase several times - crowd went wild.
But the tarmac and Hong Kong meeting also qualify. We don’t have enough data yet!