Let's do it one more time. With that much money at stake, we should grow a huge community.
Everyone thinks he will be the lucky one and prefers to avoid having to share the X10 is made to encourage people to pool their power to demonstrate that even with a collective effort the 66 67 68 and 69 will be difficult to obtain otherwise it won't find away
Also give a good boost to this puzzle which is now 8 years old
With collective effort, we can go as far as 90 bits. Then from there, Quantum code should step in. But that's another level.