What’s a piece of technology you’re convinced will exist in 20 years?

What’s a Piece of Technology You’re Convinced Will Exist in 20 Years?
Someone asked me this question recently, over a cup of tea after a long day on the wards, and I found myself answering almost before I had finished thinking it through. As a medical student, I spend my days moving between textbooks that describe disease in careful, static language, and patients whose bodies don’t always follow the script. That gap — between what we know and what we can actually reach in time — is where my mind goes whenever I imagine the future.
So here is my answer: a handheld device that can diagnose most common illnesses on the spot, anywhere, without needing a lab.
I don’t mean a glorified thermometer. I mean something closer to a small, affordable scanner — you place it against a patient’s skin, or have them breathe into it, or run a drop of blood across it, and within minutes it tells you, with real accuracy, what’s wrong. Malaria. Typhoid. Anemia. Early signs of diabetes or hypertension. Even some cancers, flagged early enough to matter. Not a replacement for physicians, but an extension of our hands and our instincts, especially in places where the nearest functioning laboratory is hours away.
Why I believe this so strongly
I grew up watching how much of healthcare in Nigeria — and across much of Africa — is a race against distance and delay. A mother walks for an hour with a feverish child, waits in a queue, and still may not get a diagnosis the same day. By the time results come back, sometimes the moment to act simply has passed. I’ve seen this not as an abstract statistic, but as a real, recurring story in the communities I’ve worked with through hospital outreaches and orphanage visits.
Technology has already started closing this gap. We have rapid diagnostic kits for malaria. We have pulse oximeters that fit on a fingertip. We have AI models that can read an X-ray almost as well as a radiologist. What I’m describing isn’t science fiction — it’s the natural next step of trends already in motion: smaller sensors, smarter algorithms, and processing power that keeps shrinking into our pockets. Give it twenty years, and I believe these separate threads will weave into a single, unassuming device that a community health worker in a rural clinic can use with the same ease as checking a temperature today.
Why it matters beyond the technology itself
What excites me isn’t just the engineering. It’s what this kind of tool could mean for equity. Right now, good diagnostics tend to follow money and infrastructure — they cluster in cities, in private hospitals, in places that can afford the machines and the specialists to run them. A device like this could change that math. It could put real diagnostic power into the hands of a nurse in a village clinic, a missionary doctor on outreach, or a first responder in a place with no electricity grid to speak of.
That’s the future I want to be part of building — not just as a doctor, but as someone who has always believed that service means meeting people where the gap is widest. It’s the same conviction that shaped the work I do through my foundation, and the same one that pulls me toward outreach work again and again. Medicine, to me, has never just been about individual patients in isolation. It’s about the systems and tools that decide who gets seen in time, and who doesn’t.
A hopeful kind of certainty
I won’t pretend I know exactly what form this technology will take, or which company or lab will get there first. But I hold onto this conviction the way I hold onto most things I believe deeply: not because I’ve seen the finished product, but because I’ve seen the direction things are moving, and I trust that direction enough to bet on it.
Twenty years is a long time. Long enough for a first-year medical student today to become a physician who has practiced for over a decade. Long enough, I hope, for the tools in my hands to look nothing like the tools in my textbooks now. And long enough, I believe, for a mother in a rural village to get an answer for her sick child in minutes instead of hours — because the technology finally caught up to the urgency of her need.
That’s the future I’m convinced is coming. I just hope I get to help build it.