Protoss psionic technology had their origin in protoss psionic abilities which enabled them to charge weapons and tools, protect themselves, and create, manipulate and meld matter.
Protoss eventually learned to create inorganic devices which can tap into similar processes to power shields, weapons, and robots. The energies are neither truly technological nor psionic, but are vulnerable to EMP effects.[1]
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- ↑ Karune. 2007-01-22. StarCraft II Q&A batches/26.