Yeah it's an awesome visualization. I always got the sense it was much more regular than it appears.
Love this detail in the https://timechain calendar.com by nostr:npub1jdgclywl55wc4neey97de57jenghsseuh8njx6z5f2kdwsfvk5xqhd2mys
‘Last 24 hours Blocks’ visual .. 
Yeah it's an awesome visualization. I always got the sense it was much more regular than it appears.
Yea, the ‘ten minute blocks’ is an average over 2016 blocks, so totally not regular block-to-block