Yeah I read about his story of being in 1$ billion dollar debt, I was at first stunned to hear this news but when I watched the whole video of him of interview, I then realized the whole story that, when you are taking a loan you have to pay lesser tax in compare to the tax that you have to pay on your own money.
Many big markets do that, to save some funds. He is playing smart, but that's not something very big, because these big people always have ways to save funds, and this is one of the many techniques to do that. Well, for me it was new and astonishing also.
Besides all that, we should really care about halving, because most of the people mostly normies are taking ETF's approval as the only factor to drive the BTC price but they are not seeing the halving event. As, the circulating supply and mining supply don't have big difference now.