The ONLY reason to "invest" in Bitcoin is short term gains, ONLY if you are good at reading markets, and exiting at the right times.
>Merchants won't take it (and those "bitcoin debit cards" don't count; the exchange is taking your bitcoin plus a fee and giving the merchant dollars, which they of course happily accept).
It's slow (10 minute confirmation times).
>It doesn't scale (block size limitations are already a problem even though nobody's actually using bitcoin for anything except for illegal transactions and speculation).
>The markets are unregulated (which is a very bad thing; there's all kinds of ways an exchange can dick you over if there aren't any rules, as experience shows).
It's ridiculously complicated to secure and you can lose everything through a fairly simple mistake or security lapse (just search for "SFYL").
>It's based on shitty economics (not understanding that small and predictable inflation is a good thing for an economy, and that deflation through having a currency increase in value over time, which is what they all expect, is terrible because it encourages hoarding).
>Its fan club is generally a bunch of stupid nerds who don't understand finance or economics and expect to get rich by buying some "financial asset" that produces absolutely nothing (at least shares of stock represent an ownership share in a company that actually creates something and produces earnings).
>Bitcoin trading is a zero-sum game: The amount of money speculators make is exactly equivalent to the amounts others lose (again, there are no dividends because nothing of economic value is created). All you're buying is the hope of selling your stake to someone else for more (actual) money, and the person that buys from you is buying the same thing. How could such a thing be sustainable?
>Even its ideological appeal of being decentralized is wrong because an oligarchy of Chinese mining pools is swallowing up more and more of the mining market share
Anything to add?