Car built with car tyres. Analogy wears thing because a tyre is a standard off the shelf thing. In software everything that is interesting (and requires employ

Car built with car tyres. Analogy wears thing because a tyre is a standard off the shelf thing. In software everything that is interesting (and requires employees) is custom to some degree. So it is like a tyre for a rover on the moon. However no need to get that to also work for a scooter on pluto! Unless the sales guy has already promised it!