> Can you spot any difference between “blöb” and “blöb”?

It's tricky to try to determine this because normalization can end up getting applied unexpectedly (for instance, on Mac, Firefox appears to normalize copied text as NFC while Chrome does not), but by downloading the page with cURL and checking the raw bytes I can confirm that there is no difference between those two words :) Something in the author's editing or publishing pipeline is applying normalization and not giving her the end result that she was going for.

  00009000: 0a3c 7020 6964 3d22 3066 3939 223e 4361  .<p id="0f99">Ca
  00009010: 6e20 796f 7520 7370 6f74 2061 6e79 2064  n you spot any d
  00009020: 6966 6665 7265 6e63 6520 6265 7477 6565  ifference betwee
  00009030: 6e20 e280 9c62 6cc3 b662 e280 9d20 616e  n ...bl..b... an
  00009040: 6420 e280 9c62 6cc3 b662 e280 9d3f 3c2f  d ...bl..b...?</

Let's see if I can get HN to preserve the different forms:

Composed: ü Decomposed: ü

Edit: Looks like that worked!