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hard · LSAT Logical Reasoning

Each new generation of the memory chip has doubled its storage density while its manufacturing cost per unit has stayed flat. The physical limits that would halt this doubling are still at least a decade away, and no competing storage technology is close to matching the chip's cost trajectory. Within five years, then, archival storage that today fills a server room will fit in a device the size of a paperback.

Which one of the following most accurately expresses the main conclusion of the argument?

  1. No competing storage technology is close to matching the memory chip's cost trajectory.
  2. The physical limits on the memory chip's storage density will never be reached.
  3. Within five years, archival storage that now fills a server room will fit in a paperback-sized device.
  4. A competing storage technology will match the chip's cost trajectory within five years.
  5. Each generation of the memory chip has doubled its storage density at a flat per-unit manufacturing cost.

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