What would this world be like today without religion?

Hi MegaMan97
“In fact, monotheism, as it has played out in history, is a kaleidoscope of monotheist, dualist, polytheist and animist legacies, jumbling together under a single divine umbrella. The average Christian believes in the monotheist God, but also in the dualist Devil, in polytheist saints, and in animist ghosts. Scholars of religion have a name for this simultaneous avowal of different and even contradictory ideas and the combination of rituals and practices taken from different sources. It’s called syncretism. Syncretism might, in fact, be the single great world religion.”
Yuval Noah Harari, Sapiens: A Brief History of Humankind
:)

I imagine science would have advanced much more rapidly, as people wouldn't get attached to their guesses about the inner workings of everything. People might not have felt as close to their tribe mates in deep history, making it more difficult for civilizations to develop, but there could be much less conflict, as religion does cause or justify a lot of warfare.

"What if" questions tend to be boring. "Atheism" and "theism" are not polar opposites. Besides, there are HUNDREDS of religions you've never heard of...there are over 700 Native American tribes, and each had their own.
Yes, the world would be better and worse.

peaceful