This is potentially a very silly-singlet question*: Wouldn't 'Mario comes to my headspace to visit' be a... a claim that could be checked? Like, it's something you could ask Mario whether it happened, making it a bit tricky to lie about it if you were malicious?

Or is it something that relies on either not having enough co-consciousness (I'm not sure that's the right term?) to easily ask Mario, or Mario going "I don't remember doing that, but that doesn't mean it didn't happen, and if I could come into this headspace from my own timeline, it isn't impossible I also travelled to there..."?

*As in, a question that is both silly, and asked by a singlet who may have stuff flying over her head.