fabus.

Journal

Personal notes on Bitcoin, investing, artificial intelligence, the digital economy, education and travel.

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Fifteen years in 140 characters

Digital economy9 min read

In October 2011 my friends talked me into Twitter. I went through everything I wrote there in fifteen years — a time capsule of the internet, three topics that still drive me and a few predictions I'm glad I didn't bet on.

Budapest

Travel19 min read

Budapest is the Queen of the Danube — as historic as Prague, yet so spacious that the tourists simply get lost in it. I go there to lecture, to keep up old contacts, to make new ones and to eat well.

Twenty years of systems for universities

Digital economy4 min read

Everyone who has applied to a Slovak university since 2011, and everyone who teaches or does research at one, is in the systems I work on. A short history of the registers and portals for higher education — from the first portal in 2005 to diploma verification in 2025.

Mallorca

Travel12 min read

At the turn of June and July I go to Mallorca for the EDULEARN conference — almost every year since 2018. What I have managed to see between the talks, where to eat well and what to bring home.

Vienna

Travel17 min read

I go to Vienna for conferences, for the airport and, more and more often, just because — for the schnitzel, the Kaiserschmarrn and the wine that grows inside the city. What I have managed to see over the years, where to eat well and why a non-coffee-drinker orders coffee there.

Trusting is fine. Blind faith is not.

Investing5 min read

You do not have to be an analyst to invest. But you should know what you are getting into, where your return is supposed to come from, and what would have to happen for it not to arrive.