Ernő Rubik on why his famous cube is a “metaphor” for the human condition
salon.com
salon.com
The difference is important because some collations should distinguish between the two cases and put them in different places when sorting. Another difference is that in traditional fine typography sometimes different sorts were used for the two cases. The umlaut should have the dots closer to the letter body than the diaeresis. Yannis Haralambous writes about these topics in his O'Reilly book Fonts & Encodings, especially about the fact that Unicode can't really express this nuances and if I remember correctly that some software uses the order of combining diacritical marks to encode the difference.
If there are previous examples of the two rendered differently, I think that makes a pretty good case for extending Unicode.
...and kudos to salon for getting Rubik's name right!
I'm not sure you what you mean by this, but Rubik discovered an algorithm to solve the cube, he didn't follow instructions like what the 1 out 20 of cube owners do.
It'd be interesting to know the percentage of the people that have discovered an algorithm by themselves to solve the cube.
(I'm not sure how his invention process went exactly, but I would guess that he probably did not start with a physical device he could hold, so I'm not sure such comparisons are really meaningful. It may have been easier for him to solve, due to inside knowledge, or it may have been harder.)
TIL the Rubik's Cube was a new invention and it didn't exist until the late 1970s. A big age revealer, I guess...
With luck, the problem solving neural pathways developed in the process can be useful for something else.
Few non-trivial problems have that feature.
Typically, we maintain them.