Most of these have been possible for many decades if not longer, even if it wasn&#x27;t done the same way. Before e-mail there was fax and telegraph before that. Video transmission is nothing new either, and it&#x27;s honestly not really that useful when you just want to talk with somebody. I bet that by far the most common use is erotic chat...<p>Nothing revolutionarized transport more than the railroad. Airplanes have changed very little since the 1960&#x27;s. Cars have changed much more, but for all practical purposes they work exactly the same. In 1885, cars and airships were little more than a novelty. Electricity became available in the late 19th century and much of electric devices we use today were developed during the first half of the 20th century.<p>Medicine advanced very little. Maybe we are better at treating certain injuries, but for most things, medicine can only keep you dying longer than it used to. The decades before that saw major breaktroughs like antibiotics and vaccines that actually worked and malaria was elliminated in much of the developed world.<p>We live in a world of things we don&#x27;t even fully realize we have.