We wont pay taxes much longer.
I know several dozen people who will honestly tell me whether they filed taxes, and facts about how they filed in the last few years.
With this information, I could train an oracle to report on facts about arbitrary people's taxes.
Once such an oracle exists, it becomes possible to offer a new type of insurance.
People who don't like taxes would buy this insurance. To continue getting coverage, they have to reduce how much taxes they pay.
If the IRS tries to punish them for refusing to pay enough, then the insurance will cover the cost.
Once we train an oracle to report on who the IRS is punishing, then this insurance can be 100% on the blockchain, There will be no central authority who could turn it off.
Anonymous traders will offer insurance coverage because they expect to make a profit.