This was weird, so I was going to add some more yeast to the brew to get the fermentation active again. (This was after I took some beer out to take a actual hydrometer reading and it still read 1.020) I sanitized all the equipment needed to get a cup of beer out so I could add some more yeast and yeast energizer. 5 min later I got everything in line to extract beer when I noticed that my airlock, filled with starsan, had a soap-like film on the top like someone stirred the starsan. Then I noticed a bubble come out of the airlock at a rate of about 1 bubble every 10 seconds.
Any explanation to my biblical story yeast of once was dead but now alive?