I don't think that it is really hard to do
It may be hard to estimate or assess, but this is a different task, anyway. Bitcoin intrinsic value comes from its transactional utility, i.e. its value as a currency and payment system, and this value Bitcoin would have if we removed it from speculation entirely. How much Bitcoin would cost in that case is unknown, but I don't think very much. Just in case, the value that Bitcoin has for being used a speculative vehicle is certainly not its intrinsic value. In this way, it could be safely claimed that Bitcoin is highly bubbled nowadays