bwk was one who could smash out the text faster than many. His having learned on a teletype, the keyboard would resound with the impact of his forceful keystrokes.
Funny, I remember the first time I got to use something other than an ASR33 or an ASR28 sometime time in the early 1970s I think. IIRC It was a Tek 4010, but the memory at the time of being amazed that I did not need so much energy to push the keys and how quiet it was. Before then I had equated computing with the feel, sounds, and machine oil smells of Teletype products. That said, when the VT52 came out in the mid-70s the DEC keyboard on it was far from the feel of the IBM Selectric III - which was considered the 'touch typist standard'