That says more about your lack of knowledge than anything else.

Cell companies are all in high gear with 5G rollout and 6G development.

Do the new SpaceX launches represent newer faster tech or is it just about finishing the constellation rollout?

SpaceX and Cellular really aren't even competitors. In business we'd call them substitutes.

The person you replied to mentions cellulars “never ending growth and speed increases.” You’re referring to a comparison right now, they are talking about the near future.

> but diesel work trucks are not free?

But the diesel work truck has already been built and purchased in this instance.

These trucks can last a very long time. Why not do both?

> It is strange that the focus is on making a diesel engine run with some hydrogen when hydrogen fuel cells would be a better fit for this type of truck.

Interesting thought, but you answer your own concern right here:

> less of an issue for mining trucks like the electric drive Liebherr t282b, which has a price tag of $5 million

The main point being:

> say they have successfully modified a conventional diesel engine to use a mix of hydrogen and a small amount of diesel,

Meaning you wouldn’t need to replace, just modify existing, expensive, equipment.

It’s a transition technology not an end-state.

This is why I don’t have Alexa.