First, a very brief background on the concept of serendipity, dealing with finding interesting things in unplanned ways:
The word was coined around 250 years ago in England after a fairy tale
“The three princes of Serendip”
-- Serendip a Persian word for Sri Lanka.
The American sociologist Robert Merton used the concept of serendipity to discuss how new ideas emerge in science
– and wrote this beautiful book about the history of the concept.
If this talk should make you more interested in serendipity, I can also recommend this article by Van Andel.