That's how you end up with "Hollywood accounting" where movies that gross over 100M dollars still show as a "loss" for tax purposes via creative accounting methods.
> What they're actually trying to do is obsolete the devices faster
This is exactly why. Obsoleting older devices keeps (in their eyes) the purchase treadmill running. Making a device that could be updated forever means never making another sale to that user (unless some physical failure happens, or the user wants a second one).
> I had not even taken my phone out of flight mode yet, but somehow the app knew where I was, despite not having mobile service, wifi or bluetooth enabled.
None of which are GPS, which is likely what Uber used to know you had "touched down". And GPS, being "receive only" may not be disabled by "airplane mode".
> I also have settings for the application set to only allow location while the app is in use.
Is that a phone setting, or an app. internal setting (i.e., a setting inside the Uber app. itself)?
If it is a phone setting (external to the app) then this would imply that it may not really do what it says it does.
If the setting is inside the Uber app. itself, then that is just a "promise" by the app. developer that they will behave, and if it is this case, then they clearly did not behave.
Edit to add: Checking my android phone just now, GPS is not disabled by airplane mode.
If it was an "inside the app" setting, then Uber did not behave.
> but the app should not have my location made available to it when I am not using it
Unfortunately, not how Android works. You can turn "location permission" on or off for individual apps, but if it is on for an app (and Uber's app likely demanded it be allowed "location permission" upon install) then if the global GPS is turned on, any app with "location permission" can ask the phone "where am I" at any time.
Because movies (in film form) are projected an entire frame at a time instead of scanned a line (well, actually a dot moving in a line) at a time onto the screen. I read somewhere (but no longer have the link) that when projecting the entire frame at once as film projectors do lower frame rates are not as noticeable. I do not know if modern digital projectors continue to project "whole frames at once" on screen.
Movies are not projected using the scan and hold approach used by typical computer displays. They have a rotating shutter which blinks every frame at you multiple times. This both helps to hide the advance to the next frame but also greatly increases motion clarity despite the poor framerate.
But blinking a frame multiple times rather than once creates a double (or triple etc) image effect. To get optimal motion clarity which compensates Smooth Pursuit without double images, one would need to flash each frame once, as short as possible. But that's not feasible for 24 FPS because it would lead to intense flickering. It would be possible for higher frame rates though.
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