Did he actually cash out the full $2 billion or some portion of it? I cannot imagine wanting to put $2 billion in cash, but I could imaging cashing out some portion of it, maybe even $10million to $100 million.. if the guy might have had some specific purchase in mind.
afaik still he is hodling 60K BTC in his private wallet.
CNN reported that out of 80K BTC he just moved only 20K BTC to Galaxy Digital and is up for negotiation. All of those 60k came from his 2011 era wallet which is worth around 2.3 billion dollars.
So you are right, it is very unlikely for a Hodler being nocoiner so early stage, he is taking smart profit and bulk of the haul still Hodling...
