1.01 · Should Science Have Limits?

Should Science Have Limits?
Two researchers answer one question. The writers are fictional; the events are real.

Yes: some doors should stay closed — Elena Vargas

Every year, laboratories produce results that would have sounded like science fiction a generation ago. We can edit the genes of a human embryo and build a virus from a computer file. The question is no longer whether we can. It’s whether we should, and who decides.

My first reason is safety. If a new medicine fails, doctors can stop prescribing it. If an edited gene enters a family, nobody can undo it, because the change can pass to future generations. In 2018, a scientist in China edited the genes of twin girls before they were born. Scientists everywhere were deeply concerned, and he later went to prison. If he had followed the rules, two children wouldn’t be facing risks today that nobody can measure.

My second reason is that rules have helped science before. In 1974, biologists asked their colleagues to pause some new experiments with DNA. The next year, they met at Asilomar, in California, and agreed on safety rules. Once the rules were in place, the work continued, and a few years later bacteria were producing human insulin. The pause didn’t kill the research. It helped the public trust it.

So my answer is yes, as long as the limits are few, clear and decided in public. I’m not asking scientists to stop asking questions. I’m asking them to accept that some experiments need a public conversation first, even if it slows them down.

No: a closed door never cured anyone — Samuel Wood

Elena is right that science can be dangerous, but her solution is completely wrong. My main reason is that delay costs lives. In the 1990s, few people believed in mRNA, but Katalin Karikó kept working on it for years. If someone had stopped that work because it sounded risky, the mRNA vaccines for COVID-19 wouldn’t have been ready in under a year. In 2023, she and Drew Weissman won the Nobel Prize.

My second reason is that bans rarely work. If one country bans a line of research, the work doesn’t disappear. It moves to places with weaker rules and less openness. If we banned it here, we’d know less, not more, about what’s being done. It’s highly unlikely that a secret lab will report its own mistakes.

Scientists must work in the open, of course. Provided that labs publish their methods and their failures, other researchers can check them far better than a committee can. I also accept basic rules in case someone tries to harm people on purpose. But the best protection isn’t a closed door; it’s a lit room, with many people watching.

So my answer is no. Science needs rules for how we work, not walls around what we may ask. Unless we’re absolutely sure an idea is dangerous, we should let people test it. Whether you agree with Elena or with me, listen to the other side before you decide.