摘要：I was thinking the other day about all those items or technologies which have only come in to being since my grandparents died in the 1970s, such as: PCs, DVDs, Mobile Phones, On-line banking, Drones. All of which anyone born at the end of the 19th Century could not have imagined. Also consider those jobs which used to exist previously, such as bus conductors or chimney sweeps. Then there are older skills which my generation acquired years ago, such as knowing how to use a duplicator, and which are now only of interest to the historians of print.
