What idea has saved the most lives?

 This guy is credited to have saving billions of lives.

His name is Fritz Haber. He is also a Nobel Prize Winner.

The context: Since agriculture started somewhere around 12,000–14,000 years, we have had shortages of nitrogen throughout our modern history. There was also a severe lack of nitrogen in our soil during the 19th and 20th century, and if it wasn’t for him, the world could’ve been a much different place with probably a billion people at most.

In comes this German chemist who is credited with revolutionizing agriculture with his discovery of a method to synthesize ammonia from atmospheric nitrogen, known as the Haber-Bosch process.

Before his discovery, farmers relied on natural sources of nitrogen for their crops, such as manure and nitrogen-fixing crops like legumes, and human poop. However, these sources were limited and could not meet the growing demand for food as the world's population increased.

Haber's process made it possible to produce ammonia on an industrial scale, which could then be used as a fertilizer to boost crop yields. This discovery had a profound impact on agriculture, allowing farmers to produce more food and feed more people than ever before.

In fact, the Haber-Bosch process is estimated to have saved billions of lives by increasing food production and preventing widespread famine. However, it has also had negative environmental consequences, as excess fertilizer can lead to pollution and other problems.

Despite its drawbacks, Haber's discovery remains a critical part of modern agriculture and continues to play a vital role in feeding the world's population.

Now, for his roles in the 1st world war, it requires a completely different article. He also wasn’t a brilliant chemist. And yet, most of us are alive because of him.