Help Me Understand: routing versus pathfinding

[shaurya947]

Which topic needs more explanation?
In chapter 8, there is a section titled "Routing Versus Pathfinding" that describes the difference between the two concepts. At the end of this section, an example is given where a path may exist between Alice and Bob, but no route exists due to some nodes on the path being offline. What about the scenario where a path may exist but without sufficient liquidity for the desired payment (assuming for a second that multi-part payments don't exist)? Would this insufficient liquidity scenario also correctly be characterized as "a path exists but a route does not"?

If so, it would be good to add this as an additional example. I'd be happy to make a PR, just need to verify first that my thinking is correct.