What Soviet engineers did is to operate robots with high voltage high current... electrical currents through wires. Everything was pumped up, from camera output to controls. My friend also prototyped well logging equipment with PIC16xxx microcontrollers which also can be operated with (relatively) high voltage (I remember 12V) and associated high currents.
Well logging and Chernobyl disaster have one thing in common - high level of radiation.
I was reading Blindsight after I read Echopraxia and was already suspicious about author (heck, vampires in E. have contradictory abilities - small musculature and high power, for one example). But when I read about "aperture leackage" I bursted out laughing and threw (PDF copy of) the book to the farthest corner of my room. Engineers from end of 21st century completely forget about experience from the end of 20th century. Nevermind relative cost of high-voltage high-current wires versus optical links.
I divide fiction authors as being smart and being smartass (pretending to be smart with various things that look smart and hoping that he will cover things up somehow). Watts is a smartass by my classification as he thinks he can throw so many "ideas" there that reader will be overwhelmed and won't be able to find about true nature of his work.
So I will not hold my breath that Watts will improve.
Yet I found some concepts from Echopraxia interesting. For example, depth of planning - how intelligence services are planning, how higher intellects would plan. Echopraxia also made me thinking how and where Watts was (in fiction) or will be (in prediction) wrong and why. It raised my interest to long forgotten Noon series by Strugatskie brothers which serve as counterexample to what Watts have in mind.
To conclude, Watt's work is conceptually very good science fiction that is very badly executed. This is so because it provokes thinking and argumentation (the sign of good literature) but is also so wrong in details (the sign of bad literature).
Okay, I have to stop. Otherwise you will read a complete theory of everything by Serguey Zefirov soon. ;)