> This announcement comes after a 4 month sabbatical where Karpathy said he wanted to take some time off to “sharpen my technical edge,” which makes it sound li

> This announcement comes after a 4 month sabbatical where Karpathy said he wanted to take some time off to “sharpen my technical edge,” which makes it sound like this is the result of frustration with the technical approach instead of burnout. That's exactly what I would expect someone burning out to say. You feel the burnout so you need time to get over it and feel 100% (regain your technical edge). You're still burnt out after 4 months, so you don't come back. Frustration with the technical approach can also cause burnout.