Earlier quoted context omitted.
Actually, the purpose of the bomb was to save many thousands more lives than it ended. An invasion of Japan would've cost an enormous number of lives. It would've also had a catastrophic effect on the civilian population, because they were being told that the American troops were there to enslave them. It has even been said that the propaganda being told to the Japanese civilians included the idea that the troops wou…
While there are many people who subscribe to your view, there are an equal number who believe that Japan would have surrendered within months/weeks with no ground invasion. The allies had complete air and naval superiority and Russia had joined the the Japanese war theatre. If you have read the ethics of atomic bombings in any detail you are already aware of the details, so I would refrain from linking to wikipedia.…
It's fine to say that Japan would have surrendered without invasion, but such a strong assertion needs to be backed by equally strong evidence.
EDIT: An excerpt from your link:
This conclusion assumed conventional fire bombing would have continued, with ever-increasing numbers of B-29s, and a greater level of destruction to Japan's cities and population.
It seems hard to argue that literally firebombing an entire civilization into stoneage living conditions was more ethical than forcing a quick political decision to surrender and stop the madness. Can you imagine trying to live without basic necessities? Even if nobody was dropping bombs on you directly, you, your family, and everyone around you would be the definition of misery for the duration of the firebombing. The firebombing didn't simply destroy military targets. It also decimated infrastructure that we take for granted, such as the ability to deliver drinkable water, or to seek medical treatment at hospitals. How many were to die a miserable death due to the firebombing before Hiroshima and Nagasaki could objectively be called the more ethical decision?
Also, the above analysis assumes both sides had perfect information. But information during wartime is asymmetric. It's entirely possible that America had no knowledge of the Japanese political framework at the time the decision to drop the bombs was made. If the Japanese were broadcasting their intention to surrender before the bombs were dropped, that would be different, but it doesn't seem like that was the case.
Would you mind helping me understand why firebombing was more ethical than the destruction of Hiroshima and Nagasaki?