How is it that I can't seem to find anyone but me, who can see
The error in the answer,,

( only half way, because beyond that, you are walking out of it ! )
To the question,,
( how far into the forest can one walk ? )

How could Einstein screw up this bad??

Ok, show the error.

Can one ever really walk into the woods, since your first step in, is also the first step toward leaving on the other side?

In answer to fr_chuck, not if you step in and die of a heart attack falling forward.