The economist Brad DeLong, in a post about The New Republic, asked the world to construct examples of negative probability. Negative probability is for "things that are so unlikely that their happening would overturn the entire structure of the universe."
Herewith my examples, a very Dovish wish list of Good Things I Want To See Which May Have Negative Probability of Happening:
Single payer health insurance becomes the law of the USA and all the health insurers have to restructure their businesses to compensate.
The government decides to enforce the statutes on broadcast licenses and the public good to include political campaigns. All broadcast and cable companies must devote large amounts of airtime to free, public service campaign coverage, including debates and town hall meetings. Since the airwaves are licensed by the government for the public good, broadcasters must provide free airtime for this purpose. Fundraising is no longer the main focus of a politician's life. Political ads on TV disappear. Lobbyists lose leverage. Democracy gains.
California builds a high-speed rail service between San Francisco and L.A., starting in 2009.
The US government quits spending money on military bases across the world and plows all the cash saved into rebuilding the light rail systems torn out of American cities sixty years ago.
Just like France, the government starts subsidizing daycare, whether private or non-profit, so that all children may go to pre-school; just like France, pediatricians make well-child visits to all pre-schools and elementary schools to deliver vaccinations and give regular check-ups, since these services are paid for by the government. Mothers no longer have to take off from work to get their kids to the doctor.
Housing and Urban Development gets funding to build enough low and moderate-income housing to meet the need. The government lends working people the money for mortgages, cutting banks out of the sub-prime business.
Oh yeah, American CEOs suddenly realize that earning 400 times the average worker's wage is bad for the health of the country, and they all voluntarily start taking salaries at multiples equivalent to those of Japanese or West German CEOs. Or maybe just roll back the multiples to the level of 1980, or a staggering 40 times the average worker's wage.
For bonus points: Israel decides to obey all international laws, pulls out of the West Bank and Gaza completely, tells the settlers to come back to '67 borders or take their chances as citizens of Palestine. Then Israel realizes that they have to do better, and they make one state and give the vote to everybody within the borders of Israel/Palestine. The Palestinians start rebuilding and work out their factional differences. The Lebanese resolve their standoff and become a one-person, one-vote society with non-sectarian parties and parliament seats. Syria figures out how to have a democracy without getting pulverized by US bombs. Bashar Assad runs for office and is bested by a coalition of progressives who promise to quit meddling in Lebanese affairs.
The Americans stop subsidizing and supporting dictatorships like Egypt and Saudi Arabia, and pressure these countries to open their electoral systems and practice true representative democracy with no cheating.
Every country quits torturing. America apologizes for Iraq and shuts down Guantanamo. All the assaults on the US Constitution of the last seven years are rolled back.
America bans handguns and automatic weapons. Americans turn in all their weapons not used in hunting and get refunds for their trouble. The gun factories close down.
A massive Marshall plan to rebuild local industry across America employs huge numbers of people who had not been counted as unemployed because they long ago quit trying to get work. The economy blossoms, and oil consumption drops because we're not importing so much crap.
Middle-class Americans decide to return to their public schools en masse, especially in the cities, and the government responds by funding new classrooms and teachers, bringing the student teacher ratio down to 18:1. Learning ensues.
Feel free to add your favorite improbable but devoutly to be hoped-for possibilities. Positive messages, please.