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Joined 1 year ago
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Cake day: June 15th, 2023

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  • But I love coding at work?!

    The problem is that every living entity in a 10 kilometer radius around me, seems to be hellbent on getting me to do anything but coding. Refining work estimates, fixing badge access rights, fixing a driver issue, telling people that you cannot do 1000 things at the same time, teaching the new developer how shit (doesn’t) works, mangling Jenkins into a functional state again, explaning that thing I did a year ago but is only now used (it was very high prio a year ago), writing documentation that noboby ever reads, progress meetings, specialty group meetings, knowledge sharing meetings, company wide meetings, etc.











  • Considering that portals are quite literally linked in a spatial manner, it would make sense that they physically cannot move independantly. Moving the orange portal would also move the blue portal. Or from a different perspective: the portals are always fixed in space, but their surrounds can move.

    But that does not make the question shown here untestable. It just means the output portal will have a velocity of it’s own.

    How to test: place 2 portals next to each other on a wall. Then apply propulsion gel in front of the orange portal. And finally move yourself at high speed through the orange portal.

    If your speed is unchanged after exiting the blue portal, but your velocity has been inverted with respect to the direction that the wall is facing, we can conclude option B must hold.


  • For shits amd giggles, I put a couple of industrial 10W fans in my PC once. That probably still made more noise than this. It also created so much overpressure that I could feel air escaping the tower from every little hole or crack. You could hold a piece of paper to the side of the pc, and see it moving because of the air escaping between the side panel and the main hull.

    But if these are normal fans (max maybe 1,5W), then the amount of power drawn will be the same as a couple of hardrives.


  • Q. If you connect to google.com, how do you know you are talking to google.com, and not bing.com? A. You find the CA of the certificate that google.com send you, and you ask that CA if the certificate is valid.

    Q. How do you know that the CA is actually the CA, and not some fake actor? A. You find the CA of the CA, and ask it to validate the certificate of the CA.

    Q. How do you know that the CA of the CA is actually the CA of the CA? A. After several layers of this recursion, there is a hardcoded set of trusted certificates on your PC.

    If someone self-signs a certificate, then this chain of questions ends well before you end up with a hardcoded (and thus trusted) certificate.

    Let’s encrypt verifies that a certificate is created from a specific domain. Therefor it can tell is whether the cert belongs to a domain with certainty.