Hartnett: Enjoy The "Boom Loop", But This Event Could Open "The Door To Doom"

After several weeks of grueling attempts to fundamentally analyze the market, a market that just keeps going higher (as Hartnett said it would at the lows in late March) no matter the macro and geopolitical concerns, it is understandable that the latest Michael Hartnett note titled "Boom Loop" (available to pro subs) is shorter: after all, what's the point of wasting too much time to explain or predict a market that just does its own thing unbound by any tethers to reality. 

So what topics attracted the BofA chief strategist's truncated attention in the past week?