in the days before mobile phones and email. It's no longer necessary, now that we can all be contacted within a few hours at most, no matter where we are.
I had a striking illustration of how communications have improved on one occasion when I was in Thailand. I had decided to take a day off, and was being driven out to a remote location in the Thai countryside to meet some people who lived in some style far from the crowded city.
As we rolled through the empty landscape, miles from anywhere, my phone rang. I answered it to hear a voice say "Peter, it's XXXX here, can you make a meeting in Guildford at 3:30 tomorrow?"
You can't escape, unless you switch the phone off - then you take a giant leap back in time.