In all honesty, taken out of context, the statement "commit to your move" is devoid of meaning. In all of chess teaching there is no such postulate that commands or advises you to "commit to your move". You can be "pot-committed" in poker...lol...but in chess, for better or for worse, you have committed yourself to your move the moment you make it. And if it turns out that it was a bad move then it would be foolhardy to press on with whatever the move was supposed to accomplish...remember, the Titanic was also committed to its course, rather than move about aimlessly...still turned out badly...
Also notice the operative word was "move", not "plan", as some have suggested. True, one is better off having a plan and make moves that fit in with that plan, but if it should be revealed at some point that it is a bad plan, remaining committed to it will rarely be rewarded.
Thank you :) And I LOVE The Titanic! Such a sad but romantic movie
Titanic is a good movie