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Cake day: June 18th, 2023

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  • I’ve done some work with near infrared spectroscopy on a similar problem to the tricorder “molecular scan.”. There are two-three main problems as I see it.

    1. A typical lab spectrometer might collect on 3,000 different frequencies to cover the spectrum. Meanwhile the sensor that is cheap enough to put in a tricorder has around 10 channels.
    2. The lab instrument probably has expensive and fragile optics. You can’t do the same thing on the tricorder because the optics will break when you drop it.
    3. Lab procedures rely on carefully controlling the illumination so it’s the same every time. Hard to do in the field, even in relatively benign field environments. This even comes down to using sample cuvettes that are precision machined to have two sides extremely parallel. You can’t make a tricorder that dispenses precision cuvettes for sample collection. If you can’t control the illumination, you have to measure it and calibrate.




  • Non-Euclidean geometry was developed by pure mathematicians who were trying to prove the parallel line postulate as a theorem. They realized that all of the classic geometry theorems are all different if you start changing that postulate.

    This led to Riemannian geometry in 1854, which back then was a pure math exercise.

    Some 60 years later, in 1915, Albert Einstein published the theory of general relativity, of which the core mathematics is all Riemannian geometry.







  • Kilmar Abrego Garcia does not really have a “legal” status, as he has an active final deportation order, with withholding of removal to El Salvador only.

    He can be legally deported to a third country (not El Salvador) that will take him. Pursuant to the supreme court’s decision yesterday, he can apparently be deported to these third countries with no advance notice whatsoever.

    Of course, deportation would make it hard to appear in Tennessee for his felony case. But that hasn’t stopped ICE before. People have been arrested for failure to appear in criminal cases, because they entered ICE detention.







  • This lawsuit is on a really narrow ground: the law says that when the president calls up a state guard into federal service, the orders must issue through the state governor.

    In this case, the President wrote the words “Through: The Governor of California” at the top of the memos. But he never actually sent anything to Gavin Newsom, or gave California any formal notice at all.

    This suit also doesn’t challenge the active duty marines, which are indisputably under Trump’s chain of command. But they can’t do domestic law enforcement unless the Insurrection Act is invoked (it hasn’t, formally).



  • He was deported to Mexico (illegally), but he’s a citizen of Guatemala. After that, he travelled from Mexico to Guatemala on his own. So his return to US was facilitated from Guatemala.

    For all we really know the agreement with El Salvador is a guaranteed one way deal that we pay them to handle and they’re refusing to play ball beyond that.

    This seems to be the party line in the sealed ex parte filings that have been presented to judges. I’ve also seen allegations that the deal is a handshake deal only–nothing in writing.

    Judge Boasberg at least is taking them at their word, with some strong warnings about perjury.