Good post from Jay...
I'm also in favor of DCA and would recommend it to noobs (and everyone, really).
Having said that, and knowing what I know now about this space, and considering the current Bitcoin price and time point relative to the Halvings, I'd say to the brave ones to go all-in, if they have the guts. Had I gone all-in back in 2015 when I started, my stash would now be at least 10 times larger.
But yeah, DCA is the safest approach. Win-win really.