... artificial intelligence researcher Hugo de Garis wonders whether the advanced artificial intelligences of extremely old alien civilisations might end up harnessing the vast computational power offered by sub-atomic elements, a hypothetical technology he labels 'X-Tech':

X-Tech provides a potential solution to the Fermi Paradox ("where are all the nonhuman civilizations?") ... maybe they're not out there living on other planets, but rather living inside atoms and particles!

De Garis notes that once this idea is thought about seriously, the current SETI paradigm seems very 'provincial'.

"Extra terrestrials (ETs), who might be primitive enough to bother sending radio signals to beings like us," de Garis says, "are NOT the most intelligent specimens in the universe. The really smart ones I suggest are very very tiny."