The installation was created by artist-technician Jack Dartford to share his own experience of anxiety. Dartford, who is on the autistic spectrum and who had severe anxiety as a child and young man, explains: “It came from the idea that I can’t really explain my emotions very well verbally, so doing it visually is, I guess, the way I communicate.”

Dartford originally envisioned the installation as a physical monolith: a freestanding LED wall. Moving the concept into the unique space of Outernet London’s Now Building forced him to redesign it while dealing with a volley of technical challenges, but also offered the opportunity to create something immersive and vast in scale.

For Londoners – Outernet London’s Now Building is the one with the gigantic LED screens outside Tottenham Court Road Station. For non-Londoners – imagine an inside-out billboard comprised of 23,000 square feet of 16K wraparound screens and more than 70 speakers, installed in a public...