A lot of those that have thought carefully about it do. The Big Universe (Tegmark 1) is much easier to accept than level 4, as it is the current scientific consensus on cosmology. Most of the weird consequences of the bigger mathematical universe also happen in a simpler big universe, but scientists aren’t so good at taking the philosophical consequences of their ideas seriously.
The Big Universe (Tegmark 1) is much easier to accept than level 4, as it is the current scientific consensus on cosmology.
BTW, I strongly believe (>90%) that the consensus on cosmology is will change in some way that doesn’t have strong implications for observations but does have strong implications for this kind of philosophy. E.g., the dark matter/energy problem getting resolved to some way that makes the universe finite.
As for level 4, we could have a long and pointless debate that would reduce to the subtleties of defining what it means for something to exist.
“A lot of those that have thought carefully about it do.”
Oh, you ran a poll on LW, and most folks responded to it, with the results confirming your anecdotal hunch about the consensus view? Cool.
For a second there I thought you were making strange unsupported claims about people most of whom you don’t know and with whom you haven’t discussed Tegmark universes.
A lot of those that have thought carefully about it do. The Big Universe (Tegmark 1) is much easier to accept than level 4, as it is the current scientific consensus on cosmology. Most of the weird consequences of the bigger mathematical universe also happen in a simpler big universe, but scientists aren’t so good at taking the philosophical consequences of their ideas seriously.
BTW, I strongly believe (>90%) that the consensus on cosmology is will change in some way that doesn’t have strong implications for observations but does have strong implications for this kind of philosophy. E.g., the dark matter/energy problem getting resolved to some way that makes the universe finite.
As for level 4, we could have a long and pointless debate that would reduce to the subtleties of defining what it means for something to exist.
“A lot of those that have thought carefully about it do.”
Oh, you ran a poll on LW, and most folks responded to it, with the results confirming your anecdotal hunch about the consensus view? Cool.
For a second there I thought you were making strange unsupported claims about people most of whom you don’t know and with whom you haven’t discussed Tegmark universes.
Naw, if someone said they don’t believe in Tegmark universes, Kevin would just conclude that they haven’t thought about it carefully enough.