Glasses
50 Things That Made the Modern Economy
English - October 28, 2019 02:00 - 10 minutes - 4.78 MB - ★★★★★ - 1.4K ratingsBusiness Homepage Download Apple Podcasts Google Podcasts Overcast Castro Pocket Casts RSS feed
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Spectacles have been around for centuries, and have a huge impact on many people's quality of life. So why is it estimated that more than two billion people aren't aware that they need them? Tim Harford considers the difference that seeing clearly makes to the world.