As measured by a far away observer, it takes an infinite amount of time for a body to fall into a black hole (though the body itself takes finite time to reach the crunch). The event horizon grows only after mass is added to a black hole, which essentially means it grows after after inifinity. Does that mean the horizon can never grow as measured by a remote observer? But that cannot be true, can it - we can directly take photos of the accretion disk, which should grow larger if the horizon grows.
So when does the horizon grow, as measured by a distant observer?
Related question (not yet answered): When does a black hole grow?
