re: Goldman Sachs believes the US economy will slow to a crawl next year

Sounds reasonable. So much of the last few quarters has been tax cuts and stimulus. I've referred to that a "juicing" the economy to create government driven growth, and apparently Goldman agrees. Once the cash infusion works its way through the system, things go back down.

Also, we have (at least from what I've seen) a fundamentally strong economy right now. So that supports the no-recession projection.

Tariffs and restrictions on global trade have and will continue to have a negative effect. I can't imagine that America's present disdain for the rest of the world helps things, but it is difficult for a non-expert to quantify the negative effect. Without a doubt we could be in an even better position absent Trump's anti-trade policies.