Science has always pushed boundaries, but some experiments make even the most curious among us wince. Rank these controversial studies from 'grim but justifiable' to 'absolutely not on my watch'.
Put the items in your preferred order.
CRISPR gene-edited babies
He Jiankui's 2018 experiment created the world's first gene-edited infants, sparking global outrage. Is bespoke DNA the future or Frankenstein 2.0?
Neuralink brain implants
Elon Musk is wiring human brains to computers, promising telepathy and cured paralysis. Miracle medicine or Silicon Valley playing god?
Human-animal chimera embryos
Scientists are growing embryos mixing human and animal cells to harvest organs. Life-saving genius or a moral Rubicon we shouldn't cross?
Psychedelic mental health trials
UK researchers are dosing volunteers with psilocybin and MDMA to treat depression and PTSD. Breakthrough therapy or trippy pseudoscience?
Artificial womb gestation
Scientists have kept lamb foetuses alive in fluid-filled bags and human trials loom. The end of pregnancy, or the end of humanity as we know it?
Drag the photo to reorder
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Britain's very first TV advert, shown in 1955, was for which everyday household product?
π History Β· 26 votes
Rank these Doctor Who actors by the year they first appeared as the Doctor, earliest first.
π³ 26 votes