i think "one person unicorn" is good clickbait but is too egotistical/founder centric and unrealistic. it takes a team, everyone needs help, founding engineers/designers/ops/PMs/domain experts can all contribute a ton that a founder doesnt have.
That was (and still is for many) the conventional wisdom that you need a team to succeed in startup land. Now a few are betting that this rule of wisdom could be proven wrong in this ai timeline.
my proposal for this term is "Tiny Teams": https://latent.space/p/tiny