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Cake day: July 10th, 2023

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  • Red is light at the 480 THz range. Blue is light at the 670 THz range. I think that’s perfectly described using terms of the physical world. If you’re talking about “what we experience as color” as being difficult to describe in our consciousness, then sure but that’s the case for every single thing we experience. Same way I can describe the musical note A as 440 Hz. Does an A to you sound the same to me? My tongue is sensing a sugar molecule, does the experience of tasting it feel the same to you?

    Not a single human perception can be described in words, but we can all compare perceptions to other perceptions and agree on the same answer. Perceptions are simply us recognizing patterns in our environment. Red is me recognizing my eyeball is looking at an object reflecting light in the 480 THz range. You look at that red ball and you also recognize it as reflecting light at 480 THz. Does it need to be described any further?



  • I don’t believe there’s much of a track record for private crafts reentering from orbit, intending to be recovered. Most private crafts like communication satellites breakup on reentry and don’t pose much of a risk to ground population. This station was designed specifically to survive reentry intact. I’m not sure what kind of deorbit equipment that station has but I would guess that’s what the FAA is concerned with. Any failure of navigation or propulsion during deorbit could result in the station losing control which would have it crashing down in some unpredictable point and time along its 25,000 mile path over ground. Undoubtedly there are some large populations below the orbit of this station



  • Home generators are not very efficient, they lose a lot of energy to heat and noise. It’s close to the break even point so depending on your generator and heatpump, you could use more gas than with a modern gas furnace. Even with a theoretical perfect 100% efficient generator, it’s not going to be an order of magnitude less gas because heat pumps are not 1000% more efficient than a gas furnace


  • I’ve also spent time in Europe using the public transportation you’re using to set the bar and Seattle and Washington DC are on par. I’m sure (hope) that some other US cities are there too that I haven’t visited. Both of those cities have stops or stations throughout the whole city and suburbs. City stops are usually around a 5 minute walk to anything and the suburbs were 15 min walk at worse. Connecting routes to get across town easily. Routes were frequent in busy areas during the day. I didn’t see anything offered in Europe that isn’t also available in these US cities with usable public transportation


  • I could get anywhere in the city quickly and cheaply at any hour of the day or night, surrounding suburbs included. Routes at least every 15 minutes or less along busy routes during the day. It would have been much cheaper if we were residents with yearly passes. We had backpacks to lug our stuff around, if you needed to bring more you could bring a small cart. It’s not as convenient as a car, buts it’s public transportation same as any city in Europe. I’ve also spent time in London and had an identical experience. What do you think busses and trains in Europe offer over the ones in good US cities? When I needed to get an hour out of London, I needed a car too