Chapter 5 - What's so special about Euler's number e?

This video was published by the channel "3Blue1Brown" on May 2, 2017, and is titled "Chapter 5 - What's so special about Euler's number e?". In this video, the topic of "Euler's number e" and why the powers of this number are proportional to their own derivatives are explored. The video starts with an interesting example and then moves on to examine the key feature of proportionality. Additionally, the concept of natural logarithm and why writing e^{ct} is a choice is discussed.