Got fairly seriously into flyfishing last year:

I considered that, but couldn't find any hooks small enough for the flies to
bite.

It's pretty easy to understand the concept, however. The lure gets whipped
around in the air (where flies are), until gravity eventually pulls the line
down to the water's surface. The fly fisherman then reels the line back in, and
once again begins whipping it through the air (where the flies were last
rumored to be, unless fished out).

It's tough to imagine how it could be any sport at all. Everybody seems to use
tackle that's far too heavy to give a fly a sporting chance. Can't imagine
there'd be much "action" if a fly were successfully hooked.

Everything's a compromise, however, and it seems that one of the challenges
with
fly fishing is that on rare instances the lure will become snagged on a fish as
it dragged back across the water. That must explain the heavy tackle. While the
gear is only infrequently snagged on a fish,
after all these years I have yet to personally witness anyone successfully
bagging a fly.