heared some people buy a lot of different products online with it. legal and not so legal goods. buy gold from bitgild or pay vpn or paytv subsciptions for example. would also not underestimate ransomware attacks on computer systems. in the end those ransomware attacks make computers more secure somehow. in the future it also may be used to prevent spamming systems and helping sorting algos put a weight on some information. i see lightning network as the reusable original hashcash email thought. for the real world mainnet bitcoin is like a hustle to use. room77 the first bar in berlin to accept bitcoin did not have many btc payments back then. with lightning it is a total different story possible. it is cheap can be used just to send money round the globe and if changed from and to fiat rapidly there is not much risk for or interst in the sender or the reciever. it is 0day for moneyprinters. it is very liquid and the system accumulates network effect and value from day one. there was a time in greece where people could not withdraw their money. but people could still transact with sepa. so they got their money out of their banks with no hussle. many of them kept the coins there. in a perfect world you would need no btc. in our world it fixes some things. maybe it is not always visible what btc fixes. it is a experiemnt. a large one