Unbending filaments were a type of Precursor construction. It was noted that they could link entire worlds and systems. Like most Precursor technology, they were also virtually indestructible.[1] As they were based on the principle of neural physics,[2] they were susceptible to the Halo Array's pulse in spite of being indestructible to virtually everything else. All Precursor structures on Charum Hakkor were destroyed when a Halo was test-fired nearby.[1]

Prehistoric humans used unbending filaments to link their orbital defenses surrounding their capital Charum Hakkor and used them to help fend off the Forerunner onslaught for over fifty years.[3]



  1. 1.0 1.1 Halo: Cryptum, page 114
  2. Halo: Cryptum, page 130
  3. Halo: Cryptum, page 118