I look forward to the day when I can buy a car which allows me to programme my destination and let the car drive me there.
The big travel difference between the rich and the rest of us is the rich can afford chauffeurs to drive their cars where and when they wish, freeing them to work, talk or picnic as they travel around from appointment to appointment. If they want to have wine with a meal or beer in the pub, they can do so and be driven home safely. If they want to crowd another appointment into the day, they can do so and take a nap in the back of the car on the way. They have greater freedom from their extra cash.
We are close to the point where technology can create automatic chauffeurs for the many. If you go from the Business car park at Terminal 5 to the airport, you go in your own automatically controlled pod vehicle. That requires tracks. Soon the technology with sat navs and satellite controls will allow similar treatment for a vehicle using the normal highway.
It is difficult to see how last century train technology can compete with this likely development. The controlled vehicle can go door to door at times convenient to the user. Satellite technology can also find the least congested route, and keep the vehicle away from traffic hotspots. We could get better use out of our roads, as the vehicle could advise on likely times for the journey to minimise travel time.
Bring it on. This would be the kind of development the UK could back and get up and running first, just as we pioneered the railways, the jet engine and the hovercraft.