On 16 Mar 2017, at 11:35, Telmo Menezes wrote:
I think that the important insight that people miss is this: if
computationalism is true, then it is nonsensical to ask if we are in a
computer simulation or not. The answer could be: "both". The relevant
answer is: "it doesn't matter". Bruno's thought experiment with the
teleportation machines shows this very well.
OK, it does not matter if the simulation is exact. But to make the
simulation exact for the physical reality, you need to emulate in a
finite time the whole universal dovetailing. That is why we can, given
some time, see if we are in a simulation made by some intelligence. We
will soon or later see a flaw, unless the intelligence follows the
simulation and intervene all the time we see the flaw. That is why if
we are in a simulation or emulation, made by an alien, it has to be
malevolent.
I enjoy following Sabine's blog, but here I have trouble finding an
argument, except for "I don't like the idea".
I concur with Brent that there is no reason why quantum worlds could
not be emulated with conventional bits. Quantum computers are not
super-Turing.
But they are not emulable in real time (plausibly, assuming P ≠ NP,
etc.). This is not a problem, but it still makes our observation not
emulable, because you need the full 1p-indeterminacy on the infinity
of all computations.
The apparent physical reality cannot be computable, if our brains or
body are (at some relevant level (relevant = consciousness invariant).
I summed up this once by saying "IF I am a machine, whatever I can see
correctly cannot be a machine".
That is why I say that, with or without computationalism, the physical
reality cannot be emulated by a computer. The universe cannot be a
program, if a program can sustain my consciousness.
Bruno
On Thu, Mar 16, 2017 at 12:42 AM, Brent Meeker
<meeke...@verizon.net> wrote:
"Emulated" would mean we're "really" computed somewhere else.
Brent
On 3/15/2017 3:28 PM, Kim Jones wrote:
Where does Bruno say we are living in a simulation? He says we are
more
likely emulated.
K
On 16 Mar 2017, at 8:57 am, Bruce Kellett
<bhkell...@optusnet.com.au>
wrote:
Sabine Hossenfelder has an interesting blog post about the
popular idea
that we are living in a simulation created by some super-
intelligence
somewhere. She is not impressed with the idea....
http://backreaction.blogspot.com/2017/03/
I think she makes some good points. Maybe Wolfram and Bruno
should listen
in....
Bruce
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