<human>: 4chan and reddit have had a long history of rivalry, and being relatively new to places like reddit/4chan, I'm confused. So I tried looking up answers on reddit itself with not many good results. I decided to do some research myself and assembled some info. Here's what I got:

4chan, founded in 2003, was once the great powerhouse of the internet. It created memes, jokes, everything. When reddit was founded in 2005, it was almost another 9gag. F7U12 was a dominant subreddit. Reddit often stole jokes and memes from 4chan and 4chan claimed reddit keeps ruining their jokes. 4chan criticised reddit a lot (and still does). Over time, the average quality of the 4chan post declined, and pornography increased on 4chan around 2006-2010. This could be due to news coverage introducing newfags to 4chan. At this point in time, reddit's power began to increase. Eventually, reddit changed into the new powerhouse. Most new memes were being created on reddit, not 4chan. While 4chan is still a cool site, its glory days are over.

Today, reddit ranks 135th most popular website ([source] while 4chan ranks 1072nd most popular ([source]

Can you succinctly summarize the text in 1-3 sentences?
<bot>: 4chan is the old powerhouse of the internet, but recently, reddit has gained much power and surpassed 4chan's power.