sobriquet9

There's still catastrophic cancellation, where subtracting two large numbers that are very close results in an answer with reduced precision.

Besides Python’s fractions, there are also constructive reals, exemplified by Android calculator where you can swipe any answer to get as many digits as you want.

What's the point of comparing quantities expressed in different units?

Debt is in dollars, GDP is in dollars per year.

Are you saying the FCC writes one thing in the regulation, but will enforce something different?

The language I see there now is unambiguous, "batteries". Lithium-ion battery for my impact driver can be used to fly an FPV drone. It does not have an FCC certification because it does not emit any RF, and the FCC never required it to be certified before. Now looks like it can no longer be imported, at least not until either Department of War or Department of Homeland Security deems it not a threat.

"the following UAS components:

    Data transmission devices
    Communications systems
    Flight controllers
    Ground control stations and UAS controllers
    Navigation systems
    Sensors and Cameras
    Batteries and Battery Management Systems
    Motors"

DJI requires activation (through a cell phone app, exposing personally identifiable information) for all their products, even action cameras.

DJI had the list of US no-fly zones that included airports, military bases, prisons, etc. Since DJI is no longer selling drones in the US, they removed that restriction.

The covered list now includes batteries and motors, even though they don't emit RF. Most are just battery cells, wires, magnets, and connectors, with not even a single transistor inside.

They were not previously subject to FCC certification, therefore none are certified, which means none can be imported now.

Rotor Riot sells a flight controller made in USA. Donald Trump Jr. is on the advisory board of Unusual Machines that owns Rotor Riot.

I think if you showed not only the point estimate, but also some measure of uncertainty like standard deviation, it should have given you a passing grade. It's hard to say why an answer like 6.8 +- 5 is wrong.

Even if you don't yet have formal statistical chops, it should be at least possible to show cumulative distribution function of results that will convey the story better than a single answer with overly optimistic implied precision.

For the same reasons people are interested in new iPhones, but not last year iPhones. And tax incentives.

Nobody is interested in used EVs, therefore resale values are very low.

If it is a completely different game, why are all strongest players the same?

This is likely. From example games, it not only knows the rules (which would be impressive by itself, just making the legal moves is not trivial). It also has some planning capabilities (plays combinations of several moves).

Tape machines predate GPS.

A metaphor should be referring to something common, not something that can be made in theory to fit a different set of requirements, but does not really exist.