Tetrads Series

Personal Knowledge Mastery Workshop – second participation

Six years ago, I participated in the 60 days Personal Knowledge Mastery (#PKMastery) workshop hosted by Harold Jarche, that I met in person in Paris. The discipline is one of the core pieces of my cornucopia, that I keep developing, enriching, and refining over years.

I have connected and discussed with Harold from time to time via social networks. First via Twitter (when I was still there), later via Slack (the private community of practice, PBCC) in addition to monthly calls via Zoom – when time permits, and now via Mastodon.

In 2026 I have participated again in the #PKMastery workshop since early October before the end of the line. With a global cohort. Collective sense-making, sharing, and learning for the win!

Tetrads Series from my Archives

One of the topics of the knowledge flows is: critical thinking. Especially with this activity: “examine technologies using the Marshall McLuhan tetrad.”

“The tetrad consists of four questions.

1. What does the medium enhance?

2. What does the medium make obsolete?

3. What does the medium retrieve that had been obsolesced earlier?

4. What does the medium reverse or flip into when pushed to extremes?”

I have dived into my blog archives and found some oldies that include some of my tetrads to peruse, make sense and decide better.

Here is below my tetrad series from 2020 that I have produced and included in each blog post.

Third places in 2020

Published in the post: Workplace Futures.

Travelling in 2020

Published in the post: Exploring.

e-book in 2020

Published in the post: Tapestry Book: the deep work behind the scenes.

Effects of audio

Published in the post: Effects of Audio.

Tetrad Series – Refined

I have produced a refined version for almost each tetrad that I produced in 2020. Six years later. 

Time flew by. I have gained perspectives. My observations and takes have changed. Some of them haven’t really shifted.

Here are below the deck to check out each refined and new additional tetrad on some technologies and emerging trends:

• Distributed learning
• Small online communities
• Online global communities
• Social media
• Videoconferencing in the pandemic

Personal Knowledge Mastery Series

Next: read my #PKMastery blog post series.

Future Skills

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