There are many people who became interested in Korean after first being interested in Japanese (myself included) and vice versa. The two countries are neighbors and share thousands of years of history together. But despite that, the two languages are unrelated. Still, they share lots of similarities, and that leads many people to want to study both of them at the same time.
So let's talk about that. Why do Korean and Japanese seem so similar, if they're actually unrelated? Is it beneficial to learn both at the same time? What sorts of pitfalls should you avoid if you want to try this?
If you have any experiences learning both, post them in the comments too.