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Cake day: June 18th, 2023

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  • I can’t immediately find a reference for this, but I would assume that all US forces deployed to support NATO in Europe can be commanded by the Supreme Allied Commander (SACEUR) who is always an American general. If the Russkies decide to invade, I’m sure that SACEUR has the authority to dictate response if he can’t immediately reach the President.

    The only reason that NATO would need to urgently and immediately speak to POTUS is for nuclear weapons release, and fortunately that scenario has been wargamed to hell and back.












  • To be clear: to get back to the ground safely, the spacecraft RCS has to operate for no more than about five hours.

    As far as I know, this spacecraft is still certified for emergency reentry, and if they needed to, the crew can get in and leave at any time. And they have good confidence that the spacecraft will get them to earth safely.

    These delays aimed at getting more data to justify certification as an operational vehicle instead of flight test. If it doesn’t work out, the worst case seems to be that a second test flight may be required.

    Delays don’t really cost NASA anything either. There’s plenty of consumables on the station for the crew, and when the capsule is docked the RCS can be shut down so it doesn’t leak.







  • I’ve met a lot of people who don’t seem to understand this important concept from epistemology, which is the philosophy of knowledge.

    To demonstrate the concept of “non-falsifiability” I will now produce a short fictitious dialog between a made up Scientist, S, and a Religionist, R.

    Topic: how old is the earth? Is it 6,000 years old or more than 4 billion years old?

    S: The earth must be more than 4 billion years old, because I found these rocks. These rocks have isotopes in them and they definitely look like they’ve been around for more than 4 billion years. If the rocks are really old, then the earth must be really old too.

    R: No. The is only 6,000 years old, because the holy Bible has a list of human descendants from Adam, the first man, to Jesus, who we know was born in 4 BC. If you count it all up, you can find the exact year that the earth was created, as described in Genesis 1, and it’s about 6,000 years.

    S: But these rocks… They’re really old…

    R: God must have created those rocks with the isotopes already set up in the correct ratios to look like they are 4 billion years old, when He separated the firmament from the heavens 6,000 years ago.

    S: But how could God create rocks with different isotopes? When minerals solidify from molten lava, lead isotopes naturally form in this ratio. (I don’t actually know how initial lead composition was established for this)

    R: God is omnipotent! Any miracle is within his grasp.

    S: But why would God want to make the earth appear to be much older than it really is? What purpose does it serve?

    R: I do not pretend to understand the ways of God.