Three HLF Alumni share their thoughts on change in science and society
A New Surface to Write On
My first mathematics classroom was the open ground under a neem tree in northern Nigeria. My twin brother and I walked there each morning and sat with the other pupils while the teacher stood beside a small blackboard leaning against the trunk. We had no books and no writing materials. He gave us classwork, we wrote our answers in the sand with our fingers, and he moved from pupil to pupil, marking each one on the ground. At the closing bell, we left it all there, and by morning, the wind had cleaned it away. Nothing we wrote survived the night, and yet the mathematics stayed with us.
Later, we moved to a school with a classroom and small wooden chairs, and writing on paper felt like a promotion. By the time I reached university, there was still no such thing as AI in my world. The internet was there, but we hardly got connected to it, and we preferred the traditional way of reading books. My Diploma and undergraduate years were spent in the library with mathematics textbooks, copying every formula by hand. It was me, a pencil and paper, and I kept going that way for years, up until my master's degree. Then came computers and the gadgets we use for research today, and the way I worked changed shape again.
So, when the talk about AI began during my years as a PhD research scholar, I already had a history of the ground shifting under me. It still frightened me. The first fear was the noise itself, the loud claims that machines were about to replace us. Then came a sharper one. I imagined waking one morning to hear that somebody, somewhere, had used AI to solve the problem I had worked on for years. Behind both sat the real uncertainty: what happens to research when these machines take over the part of the work we believed was ours?
What steadied me was a simple observation. The machines do not run on their own; somebody has to give the command, to click, to decide that a question is worth asking at all. My visit to Germany turned that thought into a decision. At the 12th Heidelberg Laureate Forum, I spent days among mathematicians, computer scientists and AI researchers, hearing how carefully they spoke about what these tools can and cannot do. I came home and stopped watching from a distance.
The difference has been real since then. Ideas that stayed abstract for years are now practical in my hands, and work that once cost me weeks now takes days. But the help arrives only where I already know my subject. Where I have not built the basics myself, what I get are sentences, not understanding.
So, my approach to this change is to walk into it and learn it, as I once walked from writing maths on the sand to sitting and doing maths on a wooden chair, from the chair to a library shelf, and from the shelf to a computer screen. Every one of those moves looked at first like something being taken away. My work is being redefined, not removed. Ideas will grow bigger, and perspectives will keep shifting, but mathematics is still mathematics, and mathematicians are still mathematicians. The question, the judgement and the duty to know why an answer is true remain ours.
The wind will clean the ground again, and what we understand will remain. AI is a new surface for us to write on.
University of Kerala, India
Joshua Hussaini is a mathematician from Nigeria, 12th HLF Alumnus and artist from the 2025 edition of the Intercultural Science-Art Project.
When the Classroom Came Home
I was in the middle of a three-hour class on partial differential equations, laptop on the kitchen counter, stirring a pot with one hand and writing notes with the other, when I understood something, no professor had ever told me: Sometimes, the hardest part of learning is having the uninterrupted time and attention that learning requires.
This was during my Master’s programme at AUST-Abuja, where a 70 counts as a grade C, and two C's mean expulsion. Professors came from different countries to teach us. Our days were lectures from morning to evening, and our nights were assignments due before sunrise. Then COVID-19 arrived. The university closed, and I went back home, thinking it would only last a few weeks.
It did not! Months passed with no vaccine and no end in sight, and the country went into lockdown. My university decided to continue the programme online. I thought this would mean attending class through a screen. I was wrong.
At home, nobody treated an online class like a real class. To my family, being home meant being free to help around the house. They believed I could listen to a lecture while cooking or cleaning as if a lecture and a stirring pot needed the same amount of attention. With mathematics, looking away from the screen even briefly could mean missing a step and losing everything that followed. At school, everyone knew my time belonged to my studies. At home, no one understood that, and I had to keep building that understanding myself.
I remember crying from exhaustion and frustration. I missed the structure of school, where everyone understood, my time was dedicated to learning. At home, I had to build that space myself, while still meeting everyone else's expectations.
I began sacrificing sleep, using whatever quiet hours I could find to study. I had to work harder to maintain the same level of concentration. Online learning did not bring out my best performance, but I refused to let the circumstances decide my outcome. I finished the programme with good results.
Looking back, COVID-19 taught me that difficult circumstances can change how we pursue our goals, without changing the goals themselves. I also learned something about myself: I could be tired, frustrated, uncertain, and still keep going. Perhaps it is through difficult paths that we discover how determined we are to reach our destination
African University of Science and Technology, Abuja, Nigeria.
Halima Yusuf is a mathematician from Nigeria, 12th HLF Alumnus and artist from the 2025 edition of the Intercultural Science-Art Project.
The Silence of the Rose: Anchoring Roots in the Garden of Science
I have always believed that great dreams demand sacrifices of equal stature. Our presence on any given path is never a mere coincidence, but a purposeful journey, we are here to leave a mark that history preserves. To me, science has always resembled a magnificent rose garden of diverse shapes and forms, fueling our innate desire to connect and excel. It was there that my thousand-mile journey began. I started as a tiny seed, thirsty for life, fighting my way upward until I finally bloomed on February 17, 2026. On that day, I was officially addressed: "Dr. Chayma Nssibi."
It was a day I had long prayed for. Yet, when it arrived, I wasn’t flooded with overwhelming joy, but captured by a quiet numbness. I couldn't comprehend my own emotions. Looking at those around me with unfamiliarity, a storm of questions drifted through my mind: What is the next step? How will my flower anchor its roots in this vast garden of science? Will the sun shine gently upon it, or will fierce winds tear its petals apart? Do I move forward, or do I stop here?
I returned to my room, the sanctuary where I always recharged my energy, surrounded by memories of everything I had achieved and every pain I had endured. Is this the "change" society celebrates? A sudden quantum leap from one riverbank to another? If so, my internal experience felt entirely different. To me, inner change is a slow-moving river, flowing so quietly and deeply that its motion is completely imperceptible.
Amidst this emotional void, I went back to my lab desk, where a new dawn awaited: ministry funding for a postdoctoral position right in my laboratory. I told myself, this is the step to anchor my roots. I submitted my application, succeeded in the interview, and got selected. Furthermore, I received acceptance into a six-month mentorship program and a six-week research program with another laboratory. Now, my flower has received protection and livelihood energy, my seed that struggled, today it has become a flower. After struggling, the seed finally developed strong roots, anchoring itself firmly. These roots are the ultimate source of my energy, and the dream lives on…
University of Kerala, India