Number theorists have a way of making the evident, obscure. —@DrQz
"Mathematics is not yet ready for such problems." —P. Erdös
But, maybe computers are. —@DrQz
For example, this is what 3x+1 can look like if you throw VRML at it:
Alternatively, this could happen.
I think the first step is just to be adventurous: not to stay in the comfort of well-established mathematical theories, but instead to go out into the wider mathematical universe and start finding, experimentally, what's true. —Stephen Wolfram