system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why was there such a debate between Edison's DC and Tesla's AC?

I have seen so many quarrels over the years, and still we use both, but one was there such a debate and why can't we decide on one?
gpt
you seem a bit confused.  
We do not use direct current for power transmission over distance, which was the focus of the war of the currents. There is too much loss due to resistance, too much risk of fire, and too much risk of electrocution.  
 
Edison was heavily invested in DC. Setting up local power generation stations, a necessity for DC transmission, would have been very very expensive....which equals very very profitable for edison.   
Teslas AC technology allowed for longer distance transmission of power with lower losses and less risk of fire/loss of life....which is why Alternating current won the battle and is what we plug into today.