With tBTC (v2 coming very soon), you can move you bitcoin to the ethereum chain and trade it/use all defi there and then move it back all trustlessly. So in a w

With tBTC (v2 coming very soon), you can move you bitcoin to the ethereum chain and trade it/use all defi there and then move it back all trustlessly. So in a way it makes ethereum a layer2 for bitcoin to work off of without having to change the bitcoin base chain