Respectfully disagree that GC is limited to the 1-D continuum noted. This is only the story of store model of memory management. The cache model with its vari

Respectfully disagree that GC is limited to the 1-D continuum noted. This is only the story of store model of memory management. The cache model with its various flavors of eviction policy -- LRU, LFU, etc. -- represents another dimension in the space of memory management.