AFAIK, not talking to anything else electric.
Probably originates from how the earliest understanding of Autism was "those people who can't talk but can math super good". Autism being a spectrum is a pretty recent thing. Honestly, it's still an ongoing thing, Aspergers existed a rather short time ago before someone realized "wait, what's the actual difference here again?" and they checked and realized "holy shit, no one actually agrees what the difference is... wow."