I just keep thinking of that old (Buffett) saying;

“Be Fearful When Others Are Greedy and Greedy When Others Are Fearful” 

Anyone who says this is an orderly rational market at the moment is either clairvoyant, in  denial,a liar or not paying much attention....(imo)
I will be happy to (mostly) sit back and (possibly) miss the top 10% of this "Trumpian" bubble.