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The analog technology is forgotten about as a relic of the past. Take this light meter for example. Light enters a photocell and changes the magnetic field of a galvanometer. The resulting change is translated to another needle that runs along a tiny aperture indicator. This indicator (a small sticker really) is then projected off of a 45* mirror, through a condenser lens and suspended on a beam splitter (a two way mirror essentially) and appears magically in front of your eye, superimposed onto your field of view. Many of these technologies will be long lost and forgotten in the next 2 decades as the last engineers leave us.