"failed to solve the Blockchain log jam" is unfair. There are numerous architectural changes in the pipeline for the next year or two (POS; plasma; etc.), that

"failed to solve the Blockchain log jam" is unfair. There are numerous architectural changes in the pipeline for the next year or two (POS; plasma; etc.), that are all designed to help scaling. Given the number and complexity of such changes, it's possible they fail, but these changes have not launched yet.