There are always different perspectives. Take the PLT (programming language theory) perspective, or at UCNC 2019, (unconventional) UPLT. Consider immersive virtual reality (IVR) programs. An IVR program will compile into an object (code) that does a whole bunch of stuff with a whole bunch of electronics attached to your head and maybe whole body. It can have a denotational semantics, which, in a gaming context (game your semantics) could involve modal logics. But there is also its operational semantics, and then physical semantics (the power consumption of the apparatus, its graphical grade of quality, ...) which depends on the physical substrate of the program, and, potentially, its experiential semantics (as you yourself become immersed in its environment). The point is that a denotational semantics, like the Gödel-Löb type modal logics for agent programs, is an important part of (intelligent to conscious) agent programming, but there is more to semantics (as in PLT semantics), like physical and experiential semantics, especially as agents will be produced by new technologies like nanotechnology and synthetic biology. As for matter, to quote a line from W.H. Auden, "... Matter is / Odder that we thought." - pt -- 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 everything-list+unsubscr...@googlegroups.com. To post to this group, send email to firstname.lastname@example.org. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.