Sorry no, I think you misunderstood.

For the whole thread, it's open-ended. People can brainstorm whatever they want to based on the title. It's good that it's ambiguous. The more conversations, the better.

But for me, I'm looking for ways that I can help solve other people's loneliness, both on an individual basis, and eventually en masse, but still me doing something as one individual.

This is what all my replies have been about, and why I posted one top-level comment asking that very specific question. I want to know what individuals can do that's actionable to help other people.