Where are these 7000 people an hour who are going to use this service ?
How when they get off the train at Old Oak Common are they going to access central london with the tube already at bursting point ?
I thought in this day and age with technology as it is we would be commuting less. Using conference calling to work from home.
Just to answer a couple of those points:
1) The line, on opening phase 1, will serve London - Glasgow and point in between. 'Classic compatible' trains will run on HS2 and then join the current network to reach their destination. I think 7,000 people/hour is easily reached.
2) The train will go to Euston after OOC but many will get off at OOC straight onto Crossrail (currently under construction and massive)
3) Regarding technology, we need to look at historical examples. All similar technological advances have resulted in the same thing: economic growth. This is because they enable greater operational efficiency which drives business growth. I haven't noticed a decline in travel demand following inventiion of the telephone, email, internet and the rise of the home computer and portable devices. Quite the contrary in fact. The belief that teleconferencing will somehow be different is just not realistic.