The idea that you can trust to the wireless links for your computing applications software when you're on the move is breathtaking in its ignorance of the availability of the wireless links.
Yet that is what Google is proposing with its laptop computers called Chromebooks which are due to launch next month.
Somehow the US technical community has got so enthralled with the idea of Cloud Computing that it has forgotten that Cloud computing depends on wireless links. And the links are shitty.
Similar flights from common sense were Intel's Pro-Share videoconferencing product of the early 1990s when the bandwidth of the telecommunications system could deliver only the jerkiest of images.
Or Motorola's $15 billion Iridium satellite constellation for a global wireless telecommunications system whose signals could not be picked up on a handset which was indoors.
Recently I was in a seminar in the US where engineers talked seriously about delivering 3G-based services to cars. This in a country where 3G coverage is far spottier than in the UK.
So ignorance of the realities of the world is nothing new in the technical world.
But you'd think someone would have told the Google guys before they put their faith in this flight of fancy.