Just think how Agatha Christie’s plots might have panned out had Miss Marple had a mobile phone. Or if she could have whipped out a tablet instead of her knitting. Or if she had studied the psychology of her neighbors while working out in the gym instead of doing a spot of gentle gardening.
Her insights could, of course, have been curtailed by not having access to domestic help to keep her abreast of all the latest gossip. And her time might have been more limited by having to trot off to work in the charity shop two or three times a week.
And as for those not so long ago medical men who still had time to pay leisurely home calls and chat to inquisitive little old ladies–well, we can only dream.