When I open youtube.com or do a search, Firefox hangs for 90 seconds while loading the page. When playing a video, moving the playback point usually results in a black screen. Playback stutters way too often.

We will run out of fossil fuels eventually. The cost of transportation is going to rise dramatically when that happens.
Any new technology we develop doesn't have to be competitive today, it has to be viable in a post-oil world. This isn't about ivory towers, this is about taking the long view.

Agreed, current sources of hydrogen suck. But if we use solar and wind power to drive the electrolysis plant, we could solve two problems at once:
- variability of wind and solar vs. grid demand: hydrogen is storable enough that you could produce it when the grid has an excess of available power.
- transportation that doesn't depend on fossil fuels.

I'm Dutch. I've seen the y-dieresis just about 0 times. The ij ligature is very rare as well. Everyone just uses the non-ligatured ij (i.e. two characters).

Fire departments don't give a damn about liability, if the number of pictures of cars with fire hoses threaded right through them is any indication.

That may be true for Internet Explorer, but I was talking about Windows Explorer.

Who cares about content? The good news is that finally display makers are getting off their collective asses and producing computer displays at higher resolutions than 1920x1200.

Depends on the implementation. BMW, for instance, uses a planetary gear set connected to the steering wheel, the rack and an electric motor. If the motor or the adaptive steering logic fails, the motor is locked and you get an ordinary constant-ratio steering system.
Checking whether the steering output matches the input would take care of your scenario.

Windows Explorer has lost the Favorites menu. Also, new Explorer windows open, then scroll the navigation pane so that the Favorites list is out of view, making Favorites monumentally annoying to use.
The scroll-the-navigation-pane nonsense also means that when you open a new Explorer window, you have to wait for the navigation pane to finish expanding before you can start selecting what you need; in my case, invariably either a Favorites item or a network drive, both of which have been scrolled out of sight thanks to the expansion of the useless {username} folder hierarchy.

Yup, it's time for the Moron Decree.

Large engine diameters only became available two decades later (high-bypass engines like the RB.211). DH used what was available at the time.

As others have said, Bloodhound already uses airbrakes for higher speeds. The disk brakes are used when the airbrakes become ineffective at lower speeds.
NASCAR is 200 mph, not 300 (and 1/4 the weight). And NASCAR brakes don't have to survive rotating at 1600 km/h. At that speed, the centrifugal force is more than most materials can handle. Bloodhound's wheels are some of the biggest engineering challenges in the project, they have to withstand something like 50,000 G. The brakes are a bit easier because they're smaller, but still a major problem.

Brakes on ordinary cars are typically several times more powerful than the car's engine, so we're talking about several hundred kW of available braking power for an ordinary saloon. On one hand, Bloodhound is a 6-ton machine going 250 km/h when the brakes are applied which would suggest the figure needs to be higher than that. On the other hand, it'll have far less grip than rubber tires on tarmac can generate so it's not the maximum power dissipation that counts.