Well luckily I grew up in a far away archaic continent that as it was always the last to receive any new technology, often landed up avoiding all of the early adopter mistakes - so I have lived in the land of full progressive my whole life. (We just had to wait 10 years longer before we got colour TV
and when the internet finally did arrive it took a moment to figure out why all American video looked so very terrible.
(no offense America but interlacing is possibly the worst mistake in all of video history - although in all fairness it was never intended for displays sharp enough to ever be able to tell it even existed - or even for colour broadcast at all for that matter)
The same echoed in things like internet standards, cellular band ranges, and so on. Being the last often met getting the latest revision.
But yeah on the video and the DPI it goes bay long before things like interlacing where even in use.
Apple used the 72DPI standard, but the standard (or at least the concept of having a calculated standard) was adopted years before by groups like IBM in an effort to make data printouts relate-able to the display (for all the pre-discussed reasons) going back to those giant database machines that looked like fitted kitchen units that they sold to big business.
And obviously the conceptual fps limit on CRT's was established long before the NTS Committee even got to ruining panning motion for everyone with their cursed interlace, or any transmission signal format for that matter with the observation that electrostatic discharge of the phosphor coatings in the CRT's of the day had a certain minimum cycle (
who knows what it was exactly - probably something around 35~45hz meaning that if you cycled each field 30times per second it would have plenty of time to discharge before the next cycle and persistence of vision could to the rest) , and any form of signaling (of any kind) faster than that discharge cycle was essentially pointless as the screen would simply begin to glow all over like a giant over engineered light bulb.
(And yes the frequency of the mains power supply was used a lot in early days too - or at very least once they had thought of it a lot of devices where specifically designed around it as quartz crystal oscillators where still a way off)
And even that was again only relative to the technology of the day and intended only as a guideline at the time - within a few years advances in CRT coating and ray calibration had made displays capable of far faster response but the standards had been set by then - and the notion that "
there is no point going any faster because you wouldn't be able to see it on these terrible old screens" slowly mutated into the ridiculous nonsense that "
there is no point going any faster because your eyes cannot tell the difference" when in fact the human brain actually forms images not the eye and it does so by composting more than just one set of data - whilst in panning motion of similarly illuminated and textured content there is an average cut of point at which the human eye begins to fail to resolve subtle changes, this actual cut off point varies very vastly from one individual to another - and is strongly affected by the intensity of light in the scene. In a darkened environment they human eye can clearly detect flashes of light less than 1/5000 of a second in duration (or so I read on what was a Berkley article if I'm not mistaken - I'm no eye specialist myself
. Or to put it another way under ideal conditions we are at least technically capable of distinguishing certain events faster than 5000 FPS
although don't expect to read names engraved into bullets as they wizz past you...
Better yet just don't get shot at.
Especially by people who engrave names into bullets.
