While I like your line of thinking, that 1986 Porsche 959 Dakar is a nostalgic thing that would not offer a proper platform to pull out each and every engineering trick that’s currently available, like what they did with the 919.

I would like to see a FIA WRC car, but unrestricted and on steroids (3 active diffs, no restrictor on the turbo, just to name two things) and get one of the Sebastiens (Ogier and Loeb would both be up to the task) to have a go on the all-terrain ’Ring

True, that’s what you have right now, with hydrogen being used mostly for industrial/chemical application.

The reason for going with liquid hydrogen storage in this race application, besides just the pure technical challenge itself, is that a tank of liquid hydrogen stores 75% more energy per volume than very highly compressed hydrogen.

2. Why a fuel pump?

That depends on the colour of hydrogen. No, not the actual colour, since it’s a colourless gas, but it’s source.

Spilling a mug of coffee on a keyboard is an accident, not a mistake.

Ah, so you never fuck up / never ever make grave mistakes. You are superhuman. Got it.

Again: what happened to comprehensive reading? Only if this is a first fuck-up. If the moron pulled shit like this before? Good riddance!

That’s not what I wrote, nor what I intended. I did not write “he only liked it.”, so don’t put those words in my mouth.

Is this the guy’s first offence? Or is this a repeat racial disgrace?

For starters, I drive a Euro6 compliant diesel, so I’m one of those piss urea-injecting auto igniters. Nothing wrong with bunker... Sorry, diesel. But I’m not messing with the particulate filter or the EGR system.

Uhmm, the sub was tested. A 1/3rd scale model in a pressure tank and the real sub by actual deep dives.

Ok, on second thought, there are some parallels.

Ever since Trinity, a total of 512 nuclear tests have been done in the open air, so atmospheric. 520 if you include the underwater tests. That totals some 545 megaton equivalent TNT, and its collective fall-out covered the world everywhere. That includes iron ore mining and open coal pit mining. Maybe add the 5% of…

Sorry, but those tragedies are not related at all. The Challenger disaster happened because of too low temperatures. It would have flown just fine had temperatures been higher. That fateful day it was launched below freezing, while the design of the Space Shuttle had temperature window above freezing.

Clearly whatever system they devised wasn’t enough.

How do you deal with a powerful convincing optimist, who regards the deep diving industry as too conservative and overly cautious?

That’s not true. In 2021 they did non-destructive testing (presumably ultrasound) after several deep dives and de-rated the hull to 3000m, due to suspected material fatigue. The hull on the Titan was replaced and they did more dives to the Titanic.

It was a pointless suicide mission from the get-go. Some lessons and regulations ARE paved in blood, but keep in mind, we have Engineering, Simulations, Prototypes, and other “new world” ways to help mitigate the risk. When you test a roller coaster....you don’t put people in it.