"This tree is known as the 'walking tree' because it can move. If the tree
needs to move, it just grows roots on that side and lets other roots die.
BRBR
That would cause the tree to fall over,

I looked at the pictures. It is up on these weird stilt roots, something like a
mangrove. You can easily imagine it growing one root at a time in the direction
of more food or water, and one root at a time dying off on the other side.
Look, if a Welwitschia works, no reason why this can't.
Iris,
Central NY, Zone 5a, Sunset Zone 40
"If we see light at the end of the tunnel, It's the light of the oncoming
train."
Robert Lowell (1917-1977)