Roberto Ierusalimschy is a legend:  he is the designer and main implementer of Lua, the de facto standard for scripting languages used in video games such as Roblox, World of Warcraft and many others. More than his (incredible) stories, his (equally incredible) insights, what sets Roberto aside is his light-hearted attitude to sharing his work with the masses, and his unique sense of humor. A wonderful interview of an inspiring personality!