John Heffernan

CESI conference 2026

CESICON Redux

CESICON is back, baby. Like the halcyon days of Anglo Irish Bank during the Celtic Tiger, CESICON – the conference of Computers in Education Society of Ireland (CESI) – saw a return to the old days, with a large attendance on Saturday 28th February at Gaelcholáiste Luimnigh in Limerick City. Like the old days, there […]

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Basement_Exit_Sign

X marks the exit.

I am leaving X. Over the past few months, I’ve been backing up, deleting, or saving bookmarks, and clearing out DMs from my Twitter (X) account, @johnmayo. There were some lovely memories in there—long‑forgotten conversations and, amusingly, the discovery that I won tickets to a Ray LaMontagne concert… 15 years ago. Over the past year,

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Computer code on screen Photo by Markus Spiske: https://www.pexels.com/photo/text-2061168/

Quantum Leap?

During a STEAM Day for middle schoolers in 2016, the organising teacher introduced the topic of quantum computing to the group—and to me who was loitering at the back—with an unusual spokesperson, the then Canadian Prime Minister, Justin Trudeau. For those unable to watch the video: quantum computing is the next evolution of computing. While

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