Not only solitude and isolation, but even solipsism is better than bad company.

@Aran I was going to say the same thing (re:solipsism)

If you are lonely when you're alone, you are in bad company. - Jean-Paul Sartre

Loneliness is a self-recognizable sadness of lack of fulfilling company. I've been loneliest when I couldn't jive with a group of people. That's when the 'maladaptive' daydreaming kicks in. It's possible to create the most beautiful worlds inside your mind.

Billions of humans can live “ happily “ in a single planet, but two solipsists cannot simultaneously exist in the universe. Therefore, a solipsist is the loneliest sentient being in the cosmos. Unless, she/he tries to communicate with her/his peers from the multiverse.

I think solipsism has the potential to solve existential problems.

@Aran are your views on solipsism transitive to single player virtual reality?

There is a non-zero probability that the solipsist mind is simulated by a higher being such that the mind perceives sensations as if there is an external universe . That higher being itself could be a single simulated entity, ad infinitum. Another possibility is that the solipsist mind might be a brain in a vat.

All true. I think @JohnZambis point is that conditions are virtual reality can create conditions of genuine solipsism. Solipsism (in terms of real solipsism) is a fallacy. I remember Bertrand Russel explained why.

An interpretation of Nick Bostrom's Simulation argument opens a window of opportunity for the existence of at least one solipsist mind. This argument does not violate any physical law, so it could be a non-zero probability.