Before the first AI winter there was incredible effort in leveraging symbolical approach. It did deliver many useful things but far from hype. For example we st

Before the first AI winter there was incredible effort in leveraging symbolical approach. It did deliver many useful things but far from hype. For example we still have no self-repairing systems, only specific fault-tolerant algoritms but by and large software is as fragile as ever. You can't avoid considering everything when trying to deal with unexpected data/issue. Only in hidsight you can then say "wow that was sooo inefficient".