One big concern I have with VeChain is the fact that there are several outstanding technical questions for the project. The team has provided few technical details into how its blockchain will work and since the project is entirely closed source, it’s nearly impossible for anyone to find out. There are open questions around how the blockchain will defend against adverse conditions (e.g. when a block producer unexpectedly goes offline or when a block producer is a malicious actor). And there are questions around what the blockchain’s architecture will look like (e.g. how is the EVM adapted to run on VeChain’s blockchain?).