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I'm assuming that there are some potential Dasher users
out there for whom breathing is the most convenient
way to convey information. If you can control the amount
of air in your lungs, then you can convey information by breathing,
and we should be able to attach Dasher to that information source.
NB, I am not interested in "sip'n'puff". Sip and puff throws away
the breathing person's ability to convey continuous analog information.
One analogy is with scuba diving. I'm told that scuba divers
use the amount of air in their lungs to control their up and
down movement.
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