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Joined 3 years ago
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Cake day: October 6th, 2023

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  • I hear you that such a large rocket is not “needed” very often, but it can still be used. I believe the plan is to ramp down falcon 9 production and go to starship launches for everything, even smaller payloads, simply because it’s cheaper and more sustainable. As long as they launch regularly, the price should still be lower than falcon 9. And at least on paper, it is more sustainable, burning methane results in cleaner exhaust than burning kerosene, the only major exhaust products are CO2 and water. And not letting an upper stage burn up or fall into the ocean is an ecological plus too.


  • but it also requires a much larger space economy.

    In this world, starship is a waste of time and money.

    Well I don’t think I agree with these statements at all. The thing is, if/when they get starship to work, not only will it be able to lift significantly more mass to orbit than the falcon 9, it will likely be cheaper per launch. Not cheaper per kg to orbit, but cheaper overall than launching a falcon 9 (remember, they need to build a new falcon second stage for each launch). That is such a significant improvement that I’d argue that its development is totally worthwhile even if the demand for launches were to stay stagnant.

    And honestly, we definitely need some heavy lift rocket. The Saturn V doesn’t exist anymore and the SLS is… economically unrealistic.


  • Well I think you’re not exactly wrong, the idea to do starlink was definitely about their rockets, but I’d say it was clearly more about falcon 9 than about starship or jump-starting a bigger satellite industry.

    First off, starlink works, it’s essentially done and it never used the starship to get its satellites to orbit. So in that light, it clearly wasn’t about starship because it didn’t use it (though it surely will at some point).

    But you can just look at what they did with the falcon 9 to see that this was really the reason behind starlink. The thing is, they were designing this reusable rocket and it had never been done before. As a result nobody thought it would work. Nobody trusted it, nobody wanted to put their payload on a rocket they didn’t trust, and no banks would insure these payloads as they had low expectations for success. As a result, spaceX could build a reusable booster, but they couldn’t get anyone to buy it.

    SpaceX was basically left with 2 options: They could continue to launch rockets with no real payload to prove the reliability of their reused boosters, essentially wasting a whole bunch of launches. Or they could create their own payloads to launch, accept the risk themselves, demonstrate that the reusable boosters worked fine, and not waste every launch.

    The advantage of taking that second option was that they could continue to iterate and make constant changes and upgrades to their rocket. Normally, making big changes would put your vehicle back into the “untested and untrusted” category, but if they continued to have their own payloads to put up, they could continue to demonstrate its reliability.

    I will say though, I think starship is absolutely about jump-starting a larger space industry. I think completely reusable rockets are a necessary first step to any larger, more permanent utilization of space.





  • If it’s being powered by wind, it’s not adding additional energy to the environment, at all. It all comes down to conservation of energy, and no chemical changes are occurring.

    Electrical energy is being generated by harvesting kinetic energy in the wind, that’s essentially just moving energy, converting it from one form to another. Energy can be swapped and converted around, but in the end, it almost always ends up turning into heat or light.

    That wind, one way or another was going to convert its energy into heat. Most often it does that by convection, causing water vapor in the air to change state, after condensing, the now warmer water release its heat into the ocean when it falls as rain.

    Turning a wind turbine to generate electricity, to run computers, is a much more elaborate route to take, but the result is the same. The wind is moving slower, a lower energy state, but the ocean is warmer, a higher energy state. It all evens out.

    Edit: I just realized, that sometimes that kinetic energy from wind contributes to storms and sometimes those storms generate lightning, and while most of the energy from lightning does turn into heat, some of that energy generates light, and some of that light shoots out into space (actually escaping the earth). So probably, higher wind speeds do result in cooling the earth a very little bit (but it’s likely negligible)







  • Well I hear those complaints, I feel like I used to be a gamer, and now that I have a family and a whole bunch of responsibilities, these days I’m more of a guy with a fancy PC.

    I read some other posts in this thread saying it was too easy, and I guess I can understand that. There weren’t a lot of places that had me stumped for long.

    I think they do need to consider adding in some new mechanics to the puzzles, I think they lean heavily on the light beams and I’d love to see some weirder stuff. For instance, the way that portal 2 added liquids, and the liquids had cool interactions with the existing mechanics. Cubes could bounce or slide on them. The streams of liquids could flow through portals, etc. In Talos, they add new mechanics from time to time, but they don’t always interact with each other in interesting ways. I know that’s difficult to do, but that might be the key to a good puzzle game sequel.