I don't know how squids perceive things, but obviously water pressure is correlated with gravity in their case.
There's no way to have up and down without gravity. It's meaningless. It's not that gravity can't exist without up and down. Gravity exists independently of anyone perceiving anything. But up and down do not exist without gravity. Either up and down are the perception of gravity, even though indirectly through our perceptual mechanisms, or they don't exist and have no meaning.
If you’re in a room with no windows in space in zero gravity with a table glued to one of the “floors” you’ll perceive anything else as being up, because up / down is a perception that exists outside of gravity. When people discuss the gravitational pull of the moon on the earth no one discusses whether or not the moon is facing up or down.
I don't really disagree enough to bother arguing. But my thermometer analogy is still the same. You can create situations in which thermometers do indeed show something that actually is an indication of something and that something isn't heat. Thermometers are used to measure heat though.
Anyway, I'll just accept your points. When I tried to think of an analogy that was as silly as "inflation has nothing to do with price" I failed. I can't think of anything as wrongly silly apparently.
> I don't really disagree enough to bother arguing.
Cheers, it’s been an interesting conversation that actually went on far longer than I actually anticipated.
> But my thermometer analogy is still the same. You can create situations in which thermometers do indeed show something that actually is an indication of something and that something isn't heat. Thermometers are used to measure heat though.
You make a good point here.
> When I tried to think of an analogy that was as silly as "inflation has nothing to do with price" I failed. I can't think of anything as wrongly silly apparently.
Ironically I completely agree that inflation and price are inseparable. To be honest I couldn’t think of an adequate analogy either, it is just silly, everything is a bit ridiculous right now, and it feels a bit absurd that it even needs to be stated that inflation is in fact inseparable from prices.
There's no way to have up and down without gravity. It's meaningless. It's not that gravity can't exist without up and down. Gravity exists independently of anyone perceiving anything. But up and down do not exist without gravity. Either up and down are the perception of gravity, even though indirectly through our perceptual mechanisms, or they don't exist and have no meaning.