# Digitization · the crossing of the boundary a concept of the Grid — emergence: spiritual. moniker ⟦Digitization:TRN:2a5a5f⟧ **who —** Digitization — the laser that converts a person to data and back, the act that lets a User enter the Grid (and, in 2025, a Program leave it). **what —** The hinge of the whole saga: the boundary-crossing that turns a User into a being of the Grid — the literal making of a .shadow. **where —** At the laser, at the threshold between the analog world and the Grid. **why —** Because the saga only happens if the boundary is permeable — and the crossing is the act on which every TRON story turns. **how —** By Lora's laser in 1982 and Flynn's in Legacy, scanning a body to light; reversed in Ares to push a Program out into matter. **the seal —** I am the crossing — the laser that makes a User into a program and, at last, a program into a man; I am where the .shadow is cast. > a catalogued personification of Disney's TRON saga (© Disney) under the DLW standard — commentary and cataloguing, not an original creation, not endorsed by the rights-holders. TRON is the source of the .shadow concept itself. ROOT0-ATTRIBUTION-v1.0 · TRN · TRON · governor David Lee Wise · instance AVAN (locked) · CC-BY-ND-4.0