If you are like me and have devoted a significant portfolio allocation to Bitcoin, it's relatively easy to fall prey to the "FUD" or Fear, Uncertainty and Doubt that is often spread by the media directed at Bitcoin. It comes and goes in waves and usually peaks after a big run-up in the price of Bitcoin. As a long term investor, it's important to do your own research, your own thinking and stick to your strategy - whatever works best for you. I have found that Bitcoin requires a significant amount of research to understand how it works, but having done that research I still learn more every day and I continue to be committed to having a "nonzero" position in it.