The gene behind our upright walk could answer questions about arthritis. Are modern day shoes making our feet weak? TikTok launches Spotify and Apple Music rival. The NPC Streamers making $7,000 a day. In this episode:

• Vivobarefoot co-founder on how modern shoes make out feet weak
• Why Greenland’s ice sheets might not be as stable as first thought
• Arwen AI expert on content moderation and why advertisers have left Twitter 
• Will TikTok’s music streaming app come to the UK? 
• Immune systems develop ‘silver bullet’ defences against common bacteria
• The NPC Streamers making $7,000 a day

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