On 4/23/2017 5:58 AM, Bruno Marchal wrote:
We can detect physical worlds, but we can't detect *primary* physical worlds, nor can be detect if we dream or awake, nor if the dreams is due to a brain in vat, or a brain emulated by Robinson Arithmetic.
You can't detect Robinson Arithmetic either. Brent -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.

