Published: October 26, 2025
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Data centers in orbit? Of course that’s your contention. Of course it is. You just finished watching a Scott Manley video on radiative heat transfer and now you think you’re gonna disrupt AWS with a few solar panels and a rideshare slot. You’re gonna believe that right up until

Image in tweet by Andrew McCalip

Alright we're done after this, no more, we've beat it into the ground 😂 I actually don't feel that strongly, it's all in good fun

My wife wanted to know what I was furiously writing on my phone on the ferry ride 😂

@andrewmccalip here's my take: it has dual use as a space laser (not necessarily Jewish). the breakout capacity issue: time to having a highly powerful energy weapon is vastly reduced. so i need the nerds to debate how dangerous that is for me. i mean back of the envelope, it seems like have a

@rebelcrayon You ever read Troy Rising? Off the wall sci-fi book that's basically a project management plan of how one would scale to petawatt optical pumped space lasers, if given zero gravity tech and a hostile invading alien civilization coming to destroy you in 10 years. Also touches on

@andrewmccalip Dude everyone left like 30 seconds into your speech I’m still here becuase I’m waiting for an Uber

@andrewmccalip man give it a rest you have lost the room

@FinnMurphy12 It's dead after this one. It feels a day late?

@andrewmccalip Incredible, except E was the one throwing around σT⁴

@nathaniroberson All tongue in cheek, I actually really like everyone on both sides of this convo.

@andrewmccalip BTDT, had thermoelastic flutter in orbit. Froze my poor satellites every 90 minutes because the flutter prevented getting star tracker lock, so it couldn’t point and be power positive enough to ride through eclipse.

@jimlux It's real. Sorry to hear The story comes from this book. The engineer that wrote this was still grumpy https://a.co/d/07QbVIu

@andrewmccalip that film is about me. im both of those guys, weirdly

@Robyn4110122680 Same, same

@andrewmccalip In all seriousness though, I hope we do find some other big new market for launch besides “satellite internet” with the next cost drop per kilogram.

@_Brett__ Same, we all want that. This post reads super negative, but in reality I simply want rigorous diligence so capital flows to ideas that have a chance to make a return. I'm working on alternative economy stuff in space too, making non-telecom dollars. It's really hard but we're

@andrewmccalip My boy is wicked smart

@Littlelarr33343 Smaaahart. More Boston in it

@junkengineer I told it to remove them all, did it miss one ?

@andrewmccalip Yes. Always question the requirements. Loved the thread. Snark aside, your first-principles takedown on orbital vibes and "shiny-object" traps is spot-on. Starlink's proof-of-concept (8k+ sats humming despite the physics gauntlet) shows @SpaceX is cracking it in-house. But

@andrewmccalip You destroyed a trillion dollars in market cap with this post.

@andrewmccalip Just build a dual-purpose space tether launch system, bro. Place datacenters around the hub, and an interface system to dock and dissipate heat into the large mass at the hub. Problem solved and we also wont need giant rockets to go to space any longer.. Where's my check?

@andrewmccalip @DanielleFong i see me in this pic

Image in tweet by Andrew McCalip

@andrewmccalip First principles isn’t about getting nerd-sniped by a shiny-object problem. It’s about asking whether we should be solving that problem at all. ^^^

@andrewmccalip Bolt preload calculations are holy and sacred, united with divine will

@andrewmccalip How do you like them applied physics?

@andrewmccalip She got that Quagmire jawline bro!

Image in tweet by Andrew McCalip

@andrewmccalip @BenderDrummer JFC the application of this scene is underrated…appreciate the reminder. and the banger 🍎

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