If we understand for sure that there’s one thing, it’s that things get smaller over time. Whether it’s your favorite chocolate bar, the hands of the US president, or the technology you’re using every day, it’s likely to be much lower than it used to be.
When it comes to digital technology, this is particularly true. Analog devices necessarily used gigantic parts: believe of ancient TV cathode ray tubes or pre-digital computer gigantic valves. Now, we pack tens of thousands of components into something smaller than a postage stamp.