Goodreads
Goodreads asked Alex Silver:

Where did you get the idea for your most recent book?

Alex Silver Part of the inspiration for Keen Sense (which was originally going to be the first Psions book, so really the whole series) was my experience working with long term care patients. We got a lot of orders to compound a topical cream that the nurses swear by, but the pharmacokinetics show almost no absorption through the skin. So based on the way the drug functions, it shouldn't work at all. We joked that the compound was useless. But it still helped calm very upset and emotional patients so the calming probably had more to do with therapeutic touch. And I wanted to take that concept of the healing power of touch further, so that was where Oscar came in, I developed the basics for how my psions functioned through his eyes. And my psions and their need for touch stems from there. Andy's emergence was study in what might happen if the need to connect to other people were literal and taken to extremes. The rest of the world grew out of that concept.

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