Uhh, hand-off between cell sites is clearly disruptive discontinuity. You can link this to the invention of radio well after telegraphs / telephones. But, radio is very much it's own thing.
What makes it seem like a smooth transition is the length of time it takes to get to consumer products plus the need to seem like prior products. Internal combustion engines where around for a log time before being refined enough for portable power. But, heat engines are very much their own thing. Similarly battery's and capacitors are their own things. However, when you get a car it's got a huge range of such disruptions packaged into one thing.
What makes it seem like a smooth transition is the length of time it takes to get to consumer products plus the need to seem like prior products. Internal combustion engines where around for a log time before being refined enough for portable power. But, heat engines are very much their own thing. Similarly battery's and capacitors are their own things. However, when you get a car it's got a huge range of such disruptions packaged into one thing.