The original recommendation was phrased in a somewhat harsh manner. And while I could be wrong, I really don't think it was meant to be taken completely literally.
I think the literal intention of it was: "if you want to join this field, all you need to do is put in the time and effort to get really good at it". Not that you should literally lock yourself away in social isolation and speak to no other human beings for several years.
"Put in the time and effort" could also involve networking with other hackers, finding collaborators for open source project or startups, communicating on IRC channels, and learning from peers in person. Yes, there will be hours of solo grinding out code and debugging - but that's not the only thing that a programmer does.
I think the literal intention of it was: "if you want to join this field, all you need to do is put in the time and effort to get really good at it". Not that you should literally lock yourself away in social isolation and speak to no other human beings for several years.
"Put in the time and effort" could also involve networking with other hackers, finding collaborators for open source project or startups, communicating on IRC channels, and learning from peers in person. Yes, there will be hours of solo grinding out code and debugging - but that's not the only thing that a programmer does.