Final answer:
After visualizing the problem using a tree diagram, we find that there are 4 paths at the end when each of the initial 2 paths split into 2 additional paths.
Step-by-step explanation:
To determine how many paths there are at the end, we can visualize this as a simple tree diagram problem. Starting with one path at the edge of the forest, it splits into 2 paths. Then, at the end of each of those two paths, there are an additional 2 paths, which means we multiply 2 by 2. Evidently, we end up with 2 x 2 = 4 paths at the end.