If you knew an alien race was coming to invade and destroy us but not for 400 years

Would u be that fussed?

I'd think twice about paying millions to have my corpse preserved until they cure whatever kills me but it wouldn't affect my day to day choices. 

Do you have some intel that you would like to share?

U should watch more blaze clergs me old china, they came centuries ago and changed our DNA and mated with our wimmin and imparted secret knowledge so that they could come back in the 1940s and start unspecti g the rectums of good ol boys from alabama

supply lines 400 years long are tough to maintain and giving already psychotically violent and inventive humans 400 years to come up with defences I think this would go badly for the aliens 

that's not to say you wouldn't have a ton of dickhead grifters running around saying "its a hoax" 

Agi will be here long before then. 5 years? Maybe sooner? Maybe already?

It really is quite remarkable that people are still so chillax about this so late in the day.