Before the 31st, will any market that refers to a large event outside of Manifold Markets and is currently considered more-or-less determined flip? E.g., will a nuclear weapon be tested, Putin disposed, or will RealDonaldTrump tweet this year?

This market will resolve YES if someone posts in the comments an example of a qualifying market that was at either 90% or 10% (YES or NO) as of today (December 30th, 19h58 GMT-3), and due to an unexpected event before or on the 31st, flips to the inverse.

I will use my judgment, and obvious manipulation -- e.g., posting a "Will aliens land in 2022" market, buying it up to 90%, then buying it down to 10% -- will be disqualified.