Answer 2C
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The Mandelbrot Set Explorer

### ** Answer 2C:**

The orbits of E and H apparently wander around the boundary of the
filled Julia set without tending to infinity or to the 2-cycle.
The orbits of F and G are fixed points that seem to lie in the
boundary. Therefore these seeds seem to be in the Julia set. Of
course, with the limited resolution shown, it is impossible to
determine whether these seeds actually lie on the boundary or are
merely very, very close to it.

It appears that orbits that lie in the Julia set of
**x**^{2} - 1 have the property that they remain forever on
the boundary. This in fact is true: the boundary of the filled Julia
set is "invariant" in the sense that any seed in this boundary has
orbit that stays there forever.