Bloomberg will not beat Trump. Outside the comfort of his Ivory tower Bloomberg will falter and blunder to a degree that will make Biden look genius. And the only reason he will run is because he thinks he can just throw all his money at running for President where Clinton clearly proved you cannot buy the Presidency.
Keep an eye on Tulsi I think she has a real chance for the very reason she is so not Trump and so not Bloomberg and she has moxy which will attract a lot of attention from the Independents and those looking for someone not held by the short hairs by a political party.