(Purposely terrible writing, but par for the course in popular science.) More specifically: although it’s certainly plausible there’s a threshold in nebular dy

(Purposely terrible writing, but par for the course in popular science.) More specifically: although it’s certainly plausible there’s a threshold in nebular dynamics for solid object formation because clouds of less total mass fail to congeal, I see no reason a prior why this mass threshold would coincide with the mass necessary to start fusion (i.e., the lightest brown dwarfs). And since we have seen brown dwarfs just above the threshold, but those below it would have been invisible to use before the past ~decade, it seems completely natural to find free-floating planets just below the threshold now that we have acquired the technology to see them.