Huge Charles Fan, is he self-funding Cardano?

I’m long on Cardano and love every AMA Charles has given. He says IOHK is a revenue driven company but how in the world can he afford to hire McCann, more IOHK employees, etc in this long crytpo winter? With the price of Ada so low and especially since it’s locked up and can’t be spent, it’s hard to understand how Cardano is being financed? The ICO in Japan raised a decent amount but can’t believe it has lasted this long with all that has and is going in to making Cardano the such an amazing and promising projects? Can you help me understand? We don’t have the war chest like EOS.