  I present a novel view on the problem of solar coronal heating. In my
picture, coronal heating should be viewed as a self-regulating process that
works to keep the coronal plasma marginally collisionless. The self-regulating
mechanism is based on the interplay between two effects: (1) Plasma density
controls coronal energy release via the transition between the slow collisional
Sweet-Parker regime and the fast collisionless reconnection regime; (2) In
turn, coronal energy release through reconnection leads to an increase in the
ambient plasma density via chromospheric evaporation, which temporarily shuts
off any subsequent reconnection involving the newly-reconnected loops.
