One nice thing about Open Source (at least for me) is different people doing the same thing in different ways and one of those happen to suit my taste perfectly. And in many cases, I won't be able to come with it myself even with Super Intelligence.

Evgeny Morozov has pointed out that using ai through chat interfaces is based on an individualised and privatised model, which (heavily paraphrased) is inherently anti-social. With an extra layer now of people making small personalised tools, do bigger things still need teams of people who know what they’re doing? FWIW I’d like to see more sharing of vibe coded tools instead of everyone making their own more less the same ones. Mine are here: pauladams.neocities.org

I don't think so. I have been using more open source software than ever before. You may argue that with LLMs I have the power to make my own stack of things, but this doesn't eliminate that I still need knowledge to properly steer an LLM to create something worthwhile. If I have no knowledge of what I intend to build, the best thing the LLM will generate is a half-assed copy of something that already exists. Which is what we have been drowning in the past couple of years.

Of course not. I think it is much more relevant to ask "Is closed source dead?". Anyone can now replace a proprietary program with a vibeslopped alternative which might suit them just as well. It will have the same level of trust (ie. none) and none of the other drawbacks.