I agree, but others have identified the challenging aspect - how to identify
with sufficient accuracy the point at which to apply an
insertion/deletion/block/cut/copy operation, and how to navigate through the
file with appropriate feedback. Audio feedback might be possible, but there
would have to be some provision for scaling the timing by different factors to
allow the desired moment to be pinpointed.
The latter part is handled by projects such as Speakup, Yasr and BRLTTY which
provide, respectively, speech and braille display access at the console level.
There are also several screen magnification projects on offer, including the
If someone does take the project I'de be interested in discussing it further
and trying out whatever is developed.