Using the latest high performance jet engine in a car for everyday usage would be illogical. The car would be costly, use lots of aviation fuel, be noisy, produce considerable heat and so be bad for global warming. The car's blistering performance would be unnecessary, except for some
record breaking sporting events.

Apart from the fact the fuels are different, the same same applies to PCs fitted with the fastest CPUs.

A high spec PC is costly, uses lots of electricity, is noisy, produces lots of heat and is therefore bad for global warming. The PCs blistering performance is unnecessary except for a small number of specialist tasks. Six years ago I completed a PhD thesis - a document far more complex than
most people today will ever write. There are endnotes, footnotes, graphs, equations, figures and photographs, all of which are numbered properly and automatically. A 100MHz PC was used for the task.

That 100MHz PC would be far too slow to run a modern version of Windows. Let us hope cars don't get bloated like Windows software has been, so that in 6 years time a new car will need a jet engine to move it along at a reasonable speed.

Dr. David Kirkby, PhD.