I think you can avoid the virus without barricading yourself inside, if you understand its mechanisms correctly. There's a big difference in behavior between someone who mistakenly thinks the virus is primarily spread by surfaces, and someone else who realizes that dry, poorly ventilated enclosures are what to avoid based on the degree to which those places are dry and poorly ventilated/enclosed.

Nobody is going to be 100% safe without choosing unreasonably cautious isolation. But there's a world of difference between being 10% safe and being 98% safe. I live in a group house and through shared risk concerns and a good understanding of the virus's mechanisms, I'm confident in saying we're successfully being 98% safe.

(I think the larger group (30 people) in the article really makes this somewhat intractable though. They were closer to the 10% safe.)