A hole will be drilled down to Earth's mantle by 2090.

Created by Mati on 2020-02-29; known on 2090-01-01

• Mati estimated 50% on 2020-02-29
• Tumblewood estimated 30% on 2020-03-02
• pranomostro estimated 60% and said “20% off for technological singularity where nobody bothers to do this because of more interesting stuff, and another 20% for the lack of purpose.” on 2020-03-06
• jazzsolo estimated 10% on 2020-03-13
• wizzwizz4 estimated 25% and said “The resource requirements are massive, and it seems mostly pointless. However, it would be really cool and we could learn something, so they might do it anyway.” on 2020-03-18
• Medea estimated 60% on 2020-07-09