I look at it more if you're smart enough to do either, which one pays way more, has better perks, doesn't require full lifestyle polygraph with a 10 year background investigation, or drug testing?
To be fair I have been talking about event sourcing for over a decade. The concepts have been around far longer than that. In fact most databases "event source" their own internal structures.
There is however benefit to modelling a system in that way and not just an internal transaction log. I have done many talks on the subject and you should be able to pull one up on youtube etc fairly quickly (its a bit much to go through in a comment).