[pfbtgom]

In hard sci-if settings like The Expanse, would we expect that all of the electronics in space to be a few generations behind the state-of-the-art planetside to account for radiation hardening? Would the electronics be more likely to be installed inside of ships where presumably there is already radiation shielding for people (thinking sensor packages and hard points)?

[jvanderbot]

I expect it'll be an ecosystem answer. Given that even personal devices might be expected to go to space or work in a dock or asteroid base, I'd expect most chips are defacto rad hard, probably by a combination of redundancy and lots of hardware accelerated software checks.

If the market demands space ready processors, and the military is primarily focused on space applications, I'd expect most of the best chips to support that radiation tolerant ecosystem.

[arcticbull]

Alternatively, we may develop better technology to block ionizing radiation in space. Then rad-hard will still be a niche application.

[willis936]

If an environment is safe for humans, then it's safe for machines. Unfortunately this is a pretty high bar to clear and shows like the Expanse greatly undersell just how hard it will be to thrive on non-Earth locations in the solar system.

[picture]

Machines can be a lot more fragile than humans though, mainly due to cost reasons. NAND flash memory chips now routinely code three or four symbols into each buried gate, which means that even a very slight disturbance can change its state. Without error correction (like most consumer hardware and software), it can cause real issues.

[jvanderbot]

Not at all. Try running your laptop on the ISS. You won't get far. Source: ran code on non-hardened commercial servers on ISS.

[silasdavis]

Aren't humans already reasonable radiation hard? Cells are full of error correction. I would have thought with greater tolerance than an off the shelf chip.

I'm being rather vague with my defitions admittedly.

[unchocked]

No, just put them inside a radiation shield and pump heat out. Same protocol for the humans.

[7speter]

There was the scene in the final season where Holden had to extract information from one of the bad guy belters satelites, and he had to open the box that held a computer. I've been wondering what computer chips from 250 years from now would look like... surely they hit a wall as far as miniaturization goes at least a century back. Anyways, radiation hardening even near cutting edge silicon probably comes easy, maybe because the materials they make the chips out of are radiation hardened themselves?