When I was looking for a name for my activity, I realised that the unifying concept between my different activities is (information) entropy.  Entropy is the information we're missing, the information we can extract from a signal, the random richness of a secret code, the impossibility to predict the noise component of a signal.  Entropy is the proverbial needle in a haystack, useful or perturbing, extracted or hidden.

x is the emblematic unknown in mathematics.  We're looking for the unknown in a haystack.  So: entrop-x.

The ball covered with random hexadecimal numbers is a symbolic representation using digital electronics notation, of the holographic universe and the entropy of a black hole (Bekenstein Hawking entropy theory), together with an electronic signal containing noise and some useful information.