There are so many statements in the article that makes me laugh > async cons: Adds latency with parallel overhead What parallel? This should be cons for multi

There are so many statements in the article that makes me laugh > async cons: Adds latency with parallel overhead What parallel? This should be cons for multi threaded running on single core cpu > async pros: Callbacks help enforce error-prone synchronization How does callbacks help in error prone synchronization? It is not callback, it is single threaded model that does.