Re: [CFNP] Educational giveaway | guess first Bitcoin Block in 2020 [9.5 mBTC]
Latest projection: 607,431 (current block) + (22*144) = 610,599
So I need about a day of blockchain rewind due to a 51% attack to win. Or a large enough drop in Bitcoin price to make 5% of all miners pull the plug. I happily accept defeat over of those 2 scenarios 
It would be nice to have also a similar contest for BTC price on January 1st 2020
See Q4 -Quarter 4 speculation thread, where will 2019 end, join the LIST!I might have been 175% more optimistic than the current price.