jan's stuff
Alles wat Jan bezighoudt, interesseert en irriteert... en ook een beetje onzin...
zaterdag, november 16, 2019
If You're Busy, You're Doing Something Wrong: The Surprisingly Relaxed Lives of Elite Achievers - Study Hacks - Cal Newport
https://www.calnewport.com/blog/2011/11/11/if-youre-busy-youre-doing-something-wrong-the-surprisingly-relaxed-lives-of-elite-achievers/
zondag, november 03, 2019
Life is a Ponzi scheme
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2687779/
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