Back in the 20th Century, the big business buzzwords were 'built-in obsolescence'. Manufacturers did not want their products to last too long. They wanted to sell a replacement to the same customer a few years later. In the world of mobile phones and computers, the same principles apply to this day. But we are all beginning to become greener and wiser. Somewhere in your world, it looks as if a process has run its course. It need not be over. It can be refreshed and revived.