Precisely nothing is eternal. But to predict and proceed with a claim that bitcoin ends is something that needs to be analyzed carefully. You just don't say everything ends without evidence of your claim. The dip to the bottom maybe a good sign to stand as evidence. But the current price has to be the price that was set when it started and volume of the coin must be zeroed otherwise it is still alive and kicking. When this happens as predicted I think it is the time when you may be technically correct.