The first words of Oleksandr Usyk after he won the title of undisputed world heavyweight champion: “Father, can you hear me? We have done this! We have done this!”

Oleksandr's father passed away in 2012.

Usyk is the undesputed unified champion of the world! Wow! Slava Ukraini!

Ukrainian aviation hit russian positions in Vovchansk. The number of destroyed russian occupiers is still unknown, but I would be surprised if anyone survived such a hit.

Ukrainian strikes disabled 14% of russia's oil refining capacity, according to the Pentagon. This loss led to a 20%-30% rise in domestic prices by mid-March and prompted a halt in exports to focus on meeting domestic demand.

I was really sadden to learn that Gary Charness, a behavioral economist, has passed away. He had larger than life personality. Always moving forward. A painful loss to experimental and behavioral economics community.

Russian terrorists are launching rockets at Kharkiv directly from the road in Belgorod. This is an evil action against both Ukrainians and russians. If Ukraine were to strike back all those civilians would be dead.