TOK: Imagination
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AI unravels 50-year-old biological riddle
Was this the most important news story of 2020? Researchers at DeepMind have made a mind-boggling discovery that could eradicate diseases and put the brakes on climate breakdown.
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The monoliths from outer space (or maybe not)
Do we Earthlings NEED to believe in aliens? The appearance of strange monoliths in the Utah desert and Romania has fuelled speculation that creatures from another world want to make contact.
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Reboot Santa! Christmas rebels call for change
Is it time to rethink Christmas? The festival evolves gradually every year as new traditions are adopted – and now some argue it has changed so much that it needs to be reinvented.
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The epic battle to save Earth’s species
Is conservation the most important job? As the winners of a prestigious environmental prize collect their awards, some people say there is no more noble task than protecting our planet.
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The Chinese apps challenging Silicon Valley
Should we welcome the “Chinafication” of social media? After years of following the West’s lead, Chinese companies are starting to make the running with the creation of revolutionary apps.
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UK to launch new military space command
Will World War III be fought in space? A new space command, a national cyber force and an artificial intelligence agency will be part of Britain’s defence transformation programme.
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Historians launch encyclopaedia of smells
Are smells the key to history? The EU is to spend £2.5m capturing ancient aromas. They hope this will help bring the past alive. Others say we will never know what it felt like at the time.
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Bitter row over naked statue of feminist icon
Is the new statue for Mary Wollstonecraft offensive? The women’s rights activist is finally being recognised more than 200 years after she died. Now critics are asking: why is she naked?
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Science finds human evolution is speeding up
Will humans ever stop evolving? For years, academics believed Homo sapiens had reached their final form. But now stunning new research suggests the human body is changing faster than ever.
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Stop press: the world is a wonderful place!
Should there be correspondents for good news? Traditionally most events that make the headlines are bad – wars, disasters, deaths – while much that is praiseworthy goes unreported.
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Paving the way for the world’s master race
Is the human race splitting into two species? An evolutionary scientist predicts that we may one day have a ruling elite which is genetically different from the rest of humanity.
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Tabby, or not tabby: that is the question
Are cats the best philosophers? A new book argues that they have a far better attitude to life than humans, and studying their behaviour can help to dispel many of our illusions.
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Despite Covid, Halloween can be spooktastic
Is it time to rethink Halloween? Its opponents are delighted that the pandemic has put a damper on this year’s fun. But fans of the festival are determined to find safe ways to celebrate.
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Star-gazing prophet sparks astrology row
Is astrology just harmless fun? Supporters think that it can comfort people who are afraid of the future, but sceptics fear that it encourages the gullible to choose fantasy over reality.
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The robot dolphin that could reinvent zoos
Could robot animals be good for nature? This model might replace wild dolphins in theme parks. So why not replace zoos entirely – with robot versions of wildlife, both living and extinct?