I disagree; it's even more obvious with AI that, with AI, a solo dev can go even faster, but still, with AI, you need a team to go further.
1. A primary meaning, "Further" means "revenue" (or "profit"). You and your AI together can sit and create a competitor to Windows 11, do the marketing copy, a sales strategy, feature testing etc, but without a team that product isn't going anywhere.
2. A secondary meaning, "Further" means "Stamina". You + AI can create everything above, but without a community (whether paying customers or free users), the product dies when your interest in it dies, even if it is still making money!
It can mean the power of delegation and creativity. The worst kind of teams are monocular, democratically oriented teams where every member must be on and act in the same manner. It's great for efficiency, it's horrible for productivity and creativity.
Surely that's both faster and further?
IMO AI agents are like a team of remote consultants that only talk shop and have no sense of humor.
Which you won’t be brave enough to put on the internet.
So, while I currently [mostly] agree, I think the / a next generation of agents might take that over a threshold and make solo development close enough to the equivalent of current 2-dev work to meaningfully change the equation. Furthermore I think that does not even need new models; I think current models with better "harness / tooling / system prompting / skills / etc." (whatever you may call the text files describing important procedures), might be able to fill most of that gap.
Obviously work that needs more than 2 devs planning might take even longer to fully solve with 1 dev + multiple agents, if ever.
My current mental model is that humans can very well think about and walk the boundary of problems, while [current] AI agents can fill the inside to some extent. If a problem has inherent "multi-dimensional boundaries", it might be hard for a person to imagine and walk it well to guide the agents. And I think most of the interesting problems fall in this category.
[0] https://themilliondollaronepersonbusiness.com/
[1] https://theownerscollective.com/podcasts/paul-jarvis-company...
Personally, I don't think useful business problems can be solved entirely with LLM loops. If you choose not to pay others to handle part of that then it's all on you.