original_query: What is the significance of Slack's podcast Fights Gone By being listed as #1 on Singapore Evolve daily's article?
query: What is the significance of Jack Slack's podcast, Fights Gone By, being ranked #1 on Singapore Evolve Daily's list of martial arts podcasts?
answer: It signifies that Singapore Evolve Daily, a notable source in the martial arts community, considers Jack Slack's podcast the best among those they reviewed.  This recognition highlights the podcast's popularity and influence within the martial arts world.