MSTR now owns about 3% of total BTC supply. When does this start becoming a problem? Sharplink CIO Matt Sheffield says 5% is where it gets dangerous, especially for chains like Ethereum "In the case of Bitcoin, I don't think it becomes a governance problem. In the case of Ethereum and many other programmable chains, you need to start considering the network security" "Around 5% in the world of Ethereum, you want to start exploring if that's where you need to reconsider ... if every time you buy more, you are being perceived as reducing the security of the network you are working to help build, you're no longer helping your shareholders" "You can't own everything, otherwise there's nothing that you actually own"