Thanks StickyB - nicely explained.
Just a couple more bits of background - you are all perfectly capable of working out the consequences. This last week's tragic events just gave a snapshot of what is to come.
Firstly - internet traffic has, on average, doubled every 12 weeks in the last couple of years.
Secondly - Investment in the infrastructure carrying PPRuNe and every other part of the web collapsed some 6 or 7 months ago.
Rob