if we keep going then the other ships can just duck.

Submarine container ships or an underpass would be cool.

Then that is tomorrow me's problem!

I honestly think a lot of thinking works that way, where we'll let tomorrow me worry about it. To be fair, a lot of the time it makes sense. The problems a solution creates are things we need to accept when alternative is worse (think global warming vs starvation circa 1770).

I honestly think that if you are involved in an operation like this and you bring this attitude to work that you'll be fired before the day is out.

This is the kind of job you want to get right the first time.

Build a taller barrier!

If it keeps getting stuck higher and higher at some point it will be out of the canal thus solving the problem, no?

Plus: free bridge!