

Because if it’s a closed loop then the heat doesn’t leave the system so at some point you need to open the system. Your options for getting heat to actually leave the system are: evaporate water, air coolers (not efficient with large systems or in warm climate), or water coolers.
The water coolers sound good but then you are heating up a local water supply which can kill a bunch of local wildlife
Damn I am the exact opposite, I love hearing about people’s dreams as long as they keep it somewhat brief like under 2 minutes because they are usually the most unhinged illogical thing