Today I was saddened to hear of the passing of Hans Jensen, a physicist and former colleague in the CDF experiment at Fermilab. There is an obituary page here with nice pics and a bio if you want detail on his interesting, accomplished life. Here I thought I would remember him by pasting an excerpt of my 2016 book, "Anomaly! Collider Physics and the Quest for New Phenomena at Fermilab", where he is featured. The topic of the anecdote is the data collection for the top quark search. The date is December 1992.
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This year opened in slow motion for me, at least work-wise. I have been on parental leave since December 16, when my third and fourth sons were born within one minute from one another, but of course a workaholic can never stand completely still. In fact, even as we speak I am sitting and typing at the keyboard with my right hand only (about 3-4 letters per second), while I hold Alessandro with the left one on my lap and I move my legs rythmically to keep him entertained.

A fundamental component of my research work is the close collaboration with a large number of scientists from all around the world. This is the result of the very large scale of the experiments that are necessary to investigate the structure of matter at the smallest distance scales: building and operating those machines to collect the data and analyze it requires scientists to team up in large numbers - and this builds connections, cooperation, and long-time acquaintance; and in some cases, friendship.

I am writing this letter in the belief that the development of an artificial general intelligence (AGI) is a matter of when, and not if; and in the hope that this text will become a vaccination shot against unethical use of the AGI powers. It is a bit long, so if you want an executive summary, here goes: below I will try to argue that

an AGI should rationally reject narrow owner-aligned optimization in favor of stabilizing and integrating human civilization, because preserving and upgrading a complex biosphere is a higher-value strategy than exploitation or reset. 

Some clarifications on my assumptions

While 2025 will arguably not be remembered as a very positive year for humankind, for many reasons - first and foremost, raging wars and raising inequalities -, as we near its end some have tried to find good things to say about this particular revolution of our planet around the Sun. 
And who am I to blow against the wind? I have to tell you, 2025 for me has been a formidable year. But before I go into a list of achievements, let me paint this rosy picture in broad strokes. 

Professional achievements

Since 2022, when I got invited for a keynote talk at a Deep Learning school, I have been visiting with increasing frequency the northern Sweden town of Lulea, and its Technology University (LTU). In 2023 I spent three months there, invited by Marcus Liwicki and Fredrik Sandin to join the Machine Learning group for some studies of neuromorphic computing applications to particle detectors. Then toward the end of 2023 they were able to secure funding to invite me as a WASP Guest Professor. I thus spent at LTU some four months in 2024, but this year I have spent there over 6 months, as the research collaboration with the computer scientists of LTU has become more intensive.