• 0 Posts
  • 10 Comments
Joined 1 year ago
cake
Cake day: June 12th, 2023

help-circle
  • Once you finish it, it’s actually really fun watching other people’s playthroughs as well - getting to relive some of the moments vicariously through other people’s eyes is almost as much fun as experiencing them yourself the first time.

    It’s also quite amazing just how different each playthrough can be, since the game is so non-linear, people take some crazy paths to get to the end ! It can be frustrating as well when someone just can’t see what is in front of their face though :)

    There are also so many subtle elements scattered around that most people miss on their first playthrough, and watching someone else play it really made me appreciate many of the details I missed on my own playthrough and even make connections I didn’t before, and understand aspects of the story that I didn’t fully get the first time.



  • The only fuel you can make from water is hydrogen. The RS-25 engines used on the SLS core stage and the Space Shuttle used liquid hydrogen, as did the J-2 engines on the second and third stage of the Saturn V (but not the first stage, which used RP-1 (kerosene) burning F-1 engine)

    Starship’s Raptor engines use liquid methane however. There are a bunch of tradeoffs between the different fuels, but generally liquid hydrogen is more difficult and expensive to deal with. With low cost reusability being one of the primary objectives of Starship, liquid methane was chosen as the best option. The fact that it can also be manufactured on Mars was also considered, since CO2 is abundant in Martian atmosphere.




  • I don’t know much about the Hyperloop - I was never interested in it, and it never seemed like a real project, some kind of Musk BS probably, but I don’t know enough to debate it. Full Autonomous driving is definitely also a very ambitious project. I do think it is in principle feasible, and has great potential, but also serious possible obstacles. I think it’s worth pursuing to figure it out. I would say that selling it to the mass market is premature at this point, and has been overhyped by Musk a lot. Also don’t know anything about the Human/Robot AI program, that also sounds like Musk BS, so I don’t really follow it.

    I do think Musk is a narcissist, I don’t think he is an idiot. I don’t think calling him a con-man is really justified. I also don’t think he is a genius, more like someone with decent amount of technical competence who often unreasonably clings to slightly insane visions and an ability to assemble talented people and push them to try to execute on those visions and ideas, which sometimes leads to legitimate breakthroughs, for example in case of SpaceX.

    I would never take Musk’s predictions, economic or technological at face value, he is clearly always talking far ahead of anything currently happening, an his predictions are notoriously unreliable and wildly optimistic. I don’t think that takes away much from the actual achievements of both Tesla and especially SpaceX however.

    I also personally would never buy a Tesla, for a variety of reasons - I actually have a lot of disagreements with the Tesla philosophy, and will probably never own a self-driving car either, but whatever.


  • If a NASA program had as many failures as SpaceX has, it would be closed down.

    94 successful Falcon 9 launches this year so far (0 failures) - 90% with reused boosters, with a single booster being flown for the 19th time yesterday - no launch system has ever come close to these kinds of numbers before.

    If by “many failures” you are referring to Starship, those are literally test articles/pathfinders/prototypes tested to destruction. It’s a different development approach than NASA’s, so I am not sure how the comparison is applicable. It took many failed booster landings early in the Falcon program to perfect the droneship landing, and look where it is now.

    Starship is a very ambitious program, really pushing the boundaries of our technological capability and challenging a lot of existing conventions. Even Elon admits success is far from certain, but declaring it doomed based on the test flight results so far is really premature.


  • Yup, Corsair replaced a pair of modules that were ~4 years old for me earlier this year, they even shipped the replacements first before I sent the bad module in - all at no cost in the end (only a deposit for shipping first, which was fully refunded once they received my old modules). I didn’t even realize they had lifetime warranty at first, didn’t think such things even exist anymore, so it was a really nice surprise.

    I had years of infrequent random crashes that I finally tracked to a bad DRAM module - I was kicking myself for not running the full memtest earlier.


  • What is your source for this ? Recent polls show reunification support is still <2%, with about 6% open to reunification eventually but not now.

    In 2018, before the crackdown in HK, the reunification support was 3%, with 13% open to it eventually - the events in HK have definitely significantly eroded support for reunification in Taiwan.

    I have family in Taiwan and literally don’t know a single Taiwanese person that wants reunification with the PRC.