This has been a sore point in a lot of discussions regarding compiler optimizations and cryptographic code, how compilers and compiler engineers are sabotaging the efforts of cryptographers in making sure there are no side-channels in their code. The issue has never been the compiler, and has always been the language: there was never a way to express the right intention from within C (or most other languages, really).
This primitive we're trying to introduce is meant to make up for this shortcoming without having to introduce additional rules in the standard.
This! Or, if you don't have geothermal heating but have an electric water heater, maybe temporarily increase the temperature it goes to: maybe it's normally set to go to 65C, then when you detect that you have negative prices and your batteries are full and your water already hot, maybe heat the water to 70C and store that little bit of extra energy as heat! If you have thermostatic valves in your bathrooms, you won't even notice the difference except by the fact that your water heater now can apparently hold a little bit more water than usual :)
The thing about Outer Wilds for me is that it's a game about exploration, but most attempts at exploration are punished (limited time frame, sands suffocating you, "ghost matter" kills...). They stuck with a "hard scifi" control scheme where you control your character in 6dof with inertia, which makes some things unnecessarily hard and did not (IMO) add anything to the game itself. The things you interact with in the world are also annoying to use, like the machines where you need to slide a ball around by locking it with your sight... Just let me press a button already!
Finally! I've been making the joke "put Linux.js in a PDF so I can run Linux, inside a PDF, inside a browser, inside Linux, inside a PDF, inside a browser, inside Linux" for far too long...