Can you teach an old nerd new tricks? For Otto Knoke, the self-proclaimed “oldest nerd in Guatemala” who has suffered from ALS for 20 years, the answer is a resounding yes. An admitted (and proud) workaholic, the 60-year-old data analyst is a well known fixture of the Guatemalan business community, having helped modernize the banking industry by introducing ATMs into the country 20 years ago. Sadly, right around that same time, Knoke was diagnosed with ALS (better known as Lou Gehrig’s disease), and was told he only had two years to live. But rather than give in to the disease,…