"UrRong" again! While it's true that saying "good luck" can be a meaningful and powerful way to show support for someone, it does not actually actively encourage someone to take action and create their own luck as the retort suggests. As stated in the original essay, there isn't such a thing as luck, so depending on luck to achieve a successful outcome would be misguided. On the other hand, Nikhil's suggestion of 'feigning confidence' provides direct, actionable advice that the person can use to better their chances of success- it's a much more effective way of showing support for someone than simply wishing them luck.
Moreover, saying "good luck" does not necessarily create a bond between two people, as there is no guarantee that the other person will take it as an act of assumed support. Feigning confidence, however, encourages open dialogue; it shows that you are willing to engage in an active conversation and willing to offer advice when necessary.
At the end of the day, while wishing someone good luck is a nice sentiment, it ultimately does not provide much in terms of actual guidance or advice. Instead of relying on chance or fate to ensure success, it is much more effective to offer active advice that the recipient can work with and use to better their situation. In other words, don't just wish someone luck- suggest they "feign confidence"! But hey, if all else fails, at least you can still say "UrRong"!