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Academia and science cannot hope to reach new heights if potential pioneers are restricted by the expanding definition of 'controversial'.

Success: What is it and does a high IQ help? There is a perception that intelligence, as measured by an Intelligence Quotient test will lead to success and ultimately, happiness. However, for decades scholars, educators and scientists have debated the validity of these tests. The human brain possesses neuroplasticity which allows for tremendous change and the rapid formation of neural pathways, which facilitate learning. As people age, neuroplasticity wains and pathways are pruned. If a skill is no longer practised, it is lost. IQ fluctuates over time. A child prodigy may not be a genius (acc...

Alternative investing: Postage stamps worth a pretty penny In a world where an email, typed using auto-fill and predictive text means one can send a message across the globe in seconds, the ritual of handwritten correspondence has been abandoned. A neat, carefully considered note is all but lost in the digital age. A small and essential part of the old-fashioned practice remains in the form of the postage stamp. Collectors can now count the value of their treasures in millions, depending on the rarity of the once mundane little squares of paper. Peter Dearlove writes about a humble hobby that...