BBC has a list called The 25 most powerful ideas of the 21st century (so far), picked by the world’s top thinkers. They don’t spell out science or technology in the title, but I don’t see any grand philosophical or literary analysis here. It’s not exactly clear if the list is in any order, other than maybe grouped loosely by topic. I’m just going to list a few I found interesting below, in categories:

• Medicine: stem cells that don’t come from babies, mRNA vaccines, genome sequencing, a cure for HIV*, the HPV vaccine, contraception apps [what we used to call “the rhythm method and were cautioned not to use, but the apps now make it accurate], tissue engineering [this is growing body parts from a sample of human DNA for implant back into that same person – the article says ears, trachea, and bone have been used in patients, while kidneys and hearts are still at the research stage], psychedelic therapy
• Environment: global warming and continuing carbon emissions, attribution analysis
• (Information) Technology: large language models, robots that can do chemistry experiments
• (Other) Technology: self-repairing materials
• Physics/Cosmology: dark matter, the Higgs boson, the James Webb telescope, exoplanets, gravitational waves

* The HIV cure deserves some extra discussion. HIV can be cured, at least in some people sometimes, by transplanting bone marrow from a naturally HIV-resistant person. A bone marrow transplant is such a big deal that it would not be ethical to do it for people whose only problem is HIV(!) because other effective treatments are available. It is done for people with terminal leukemia when no other treatments are available. A few of these people have HIV, and it has been shown that their HIV can be cured. So we need to keep working on applying some of the other technologies to an HIV vaccine and/or cure.

I want to just briefly talk about the contraceptive apps. I might have heard about that but didn’t realize it had been so rigorously studied and FDA-approved. It seems so simple and yet a breakthrough, which I find heartening. I find this heartening because I would like to see our society eventually move on from the abortion debate, and the way to move on in my view is to improve technology, access and knowledge about birth control while reducing stigma. This seems to me to accomplish all those objectives without a major scientific breakthrough being required. (I am under no illusions about the politics – if technology solves an issue, people who need an issue to suit their political purposes will find or manufacture another issue.)