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While it might have much utility, at least it's a great landmark at the same time. The Eiffel Tower has significantly less utility. On the other hand, the Golden Gate Bridge was about 10 times as expensive.
![Twitter avatar for @NASA](https://substackcdn.com/image/twitter_name/w_96/NASA.jpg)
![Artist concept of the Demonstration for Rocket to Agile Cislunar Operations (DRACO) spacecraft, utilizing a nuclear thermal rocket engine flying through space. The background of the image is a visualization of stars in the far distance with the Earth's horizon visible in the bottom left of the image.
Credit: DARPA](https://substackcdn.com/image/fetch/w_600,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fpbs.substack.com%2Fmedia%2FFnP1KASWYAAgfyU.jpg)
I'm not an expert, but I use these a lot in Kerbal Space Program, highly recommended. Plus, there's so much background radiation in space that the spent fuel barely registers after a few meters.
![Twitter avatar for @AlecStapp](https://substackcdn.com/image/twitter_name/w_96/AlecStapp.jpg)
![Image](https://substackcdn.com/image/fetch/w_600,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fpbs.substack.com%2Fmedia%2FFnReBKgXkAUIwkl.jpg)
![Image](https://substackcdn.com/image/fetch/w_600,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fpbs.substack.com%2Fmedia%2FFnReBKdWYAEpN8r.jpg)
![Image](https://substackcdn.com/image/fetch/w_600,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fpbs.substack.com%2Fmedia%2FFnReBKbWIAMGZTX.jpg)
![Image](https://substackcdn.com/image/fetch/w_600,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fpbs.substack.com%2Fmedia%2FFnReBKbXEAAu3FT.jpg)
Here's the underlying article, I'm personally skeptical that prediction markets are the best way to gather accurate predictions about the future, but they're better than many of the alternatives that we're currently using.
![Twitter avatar for @theintercept](https://substackcdn.com/image/twitter_name/w_96/theintercept.jpg)
![](https://substackcdn.com/image/fetch/w_600,h_314,c_fill,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Fb63a9bf7-ad31-4ee0-a194-af0cee2707d8_1200x800.jpeg)
Yea, Musk being in charge of Twitter causes many problems, but once again, too much free speech is probably not one of them.
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Threads
• Senator Scott Wiener has a thread describing San Francisco's freshly state-approved housing element. TL;DR: they're going to be building homes three times faster over the next 8 years than the last 8 years.
• A thread on the value of all US land. TL:DR: $35 Trillion, and a 2% tax on that could go a very very long way.