Diving full-on into data aesthetics, Dutch artist (and half of JODI) Joan Heemskerk’s “REc+ >>>” opens at Brussels’ Rectangle (BE). Broadly engaging networks, data, and cryptography, Heemskerk foregrounds the abstraction implicit in computation, in one piece visualizing a mournful requiem for a (crypto) wallet and in another taking the elegant mathematics of base number system conversion (2 to 8 to 16) and expressing it as a sculptural colour study (image: Untitled, 2023).