Necessary-Celery

Necessary-Celery t1_ixsi5nq wrote

So much of famously walkable Boston has very narrow sidewalks, often with trees narrowing down the sidewalk even more.

And I think we're all just used to it, because despite that Boston is still one of the, if not the most walkable bigish cities in the US.

But my point is, it would be great to have a wider sidewalks, although I very much doubt we'll ever see the trees planted in the street. And it would be very odd to get that before we get physical barriers between traffic and bicyclists.

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Necessary-Celery t1_irp1wp2 wrote

I wish I knew enough rocket science to understand if space mining is likely to happen or pure hype.

I wish we at least had a rocket scientist with enough economic knowledge who could explain it well enough in a blog or something.

To my rocket science ignorant brain, it seems like fully automated space mining, with as affordable as Space X (10 times cheaper than NASA) has made launches. Space mining may well work given how much gold, platinum, iridium and other expensive metals are supposed to be in asteroids.

The key being it seems like, I have no actually idea if it can be done profitably.

From the article:

>“In today’s economics and in the economics of the near future, the next few years, it makes no sense to go after precious metals in asteroids. And the reason is the cost of getting to and from the asteroids is so high that it vastly outstrips the value of anything that you’d harness from the asteroids,” Sercel says.

That seems like a hard No.

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