Technical details aside, I find it quite amusing that the hardware in my pi zero is more secure than my desktop that is two orders of magnitude more expensive
I think it's interesting, you are not just paying for speed, you are paying for a compromise, because the speed is gained through complexity, which not only increases the chance of error (by design or implementation) but in the case of a high degree of speculative execution can translate into worse performance per watt. In short, it's the whole "more is less" thing.
Very good point. Apparently including at least one compromise that most people (probably including the engineers who designed the CPUs) didn't know they were making.
:P yes I stole it from mywittyname
I didn't downvote you (can't even do it), but I suspect you are getting downvoted because your analogy is so off the mark that it can't even be called "Apples vs Oranges".
edit: replying to the "why the downvotes" which has since been edited away
It doesn't even matter though, I said technical details aside...
I'm not stupid i know a pi zero is slow, but it's a cheap computer that happens to be invulnerable to three really bad sidechannel attacks that plague all big shiny expensive ones. How is that not a little amusing. Not any more now I've had to argue for it.
Actually, if it's true that a car gets a better mileage than a big airplane (more in one vehicle = more efficient, people seem to believe) I would find that interesting. Similarly, I can see how OP thinks it's ironic that a very cheap machine is not vulnerable whereas a quite expensive piece of equipment is, making it seemingly less-well engineered.
https://en.wikipedia.org/wiki/Fuel_economy_in_aircraft
Jet fuel is 37.4 MJ/L; compare to gasoline at 34.2:
https://en.wikipedia.org/wiki/Energy_density#Energy_densitie...
An electric car will have up to 150 miles-per-gallon equivalent (aka 150 miles per the same amount of energy that's in one gallon of gasoline):
https://en.wikipedia.org/wiki/Miles_per_gallon_gasoline_equi...
So therefore, an electric car with just the driver is more efficient energy-wise than an airplane, while an average airplane is better than a gas car with even three people in it.
Of course a 747 in a domestic Japan configuration will have more passengers than a typical BA 747 tatl flight with 100+ beds.
For instance many EV proponents note the total cost of ownership difference due to significant differences in maintenance costs. Playing the other side of the argument: they tend to forget about the value of upfront cost is more than later cost.
It's still possible to achieve some sort of quantitative comparison by applying an interest rate based on "distance" of the cost in time before summing them. If you applied this to a regular petrol car you might be able to make a better comparison to the ticket price of a flight.