If one accepts that a cryptography expert would publish either a peer-reviewed academic paper or a comprehensive article instead of a twitter post, then one may conclude OP is not a cryptography expert. Additionally, the focus on length ahem and no other metrics is a common symptom of non-experts (I posit an 8MB key is not practical). The moral of this story is, it is wonderful and encouraging to have a new idea in any domain, but the next step is to ask yourself (or a few select individuals), "how do I evaluate my idea?" _Everything_ you will learn while answering that question will be valuable. Posting to twitter almost never is.