Since I posted this idea Bitcoin went down by around $100, only to then go back up. It has now reached a new ATH of ~$4840. This is a very important level, since Goldman Sachs analysts called a top for around the $4830 mark. Even if they cannot foresee the future they have some of the best market analysts in the world and their analysis has a lot of influence on other people.
Conclusion: We might have reached a very strong resistance level now. I am still bearish, especially when it comes to the short term picture.