U1F984

Not all, but definitely on some. I also find it very off-putting.

Java does use dup in some cases, e.g.

   public static void test() { 
      new Object();
   }

         0: new           #2                  // class java/lang/Object
         3: dup
         4: invokespecial #1                  // Method java/lang/Object."<init>":()V
         7: pop
         8: return

From the article: Lookup tables are always faster than calculation - is that true? I'd think that while in the distant past maybe today due to memory being much slower than CPU the picture is different nowadays. If you're calculating a very expensive function over a small domain so the lookup fits in L1 Cache then I can see it would be faster, but you can do a lot of calculating in the time needed for a single main memory access.

I can't find anything about these low gravity regions (Google redirects me to your post) but they sound interesting. Can you share some reading material?

I checked on my OnePlus 7 and indeed it's possible by default. There is a setting to disable access to the notification (/setting) drawer from the lock screen at least in Oxygen OS though.

Not sure why this is down voted, I also looked into this at some point but was unable to find a solution.

The somehow is explained quite well at the end - they discussed different approaches and why they chose the current one.

Also down for me.

That's what "forced captions" are for: they will only show subtitles for the scenes where foreign languages are spoken.

The option is only available for known devices, which should make it more difficult to pull this off.