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Ask HN: How can I spend my time on the bus productively?
I am about to start a job where I will have to commute ~1.5hr each way to/from work whenever I can't work from home. I won't always have a seat, so being able to use a laptop isn't guaranteed. Is there anything other than reading I could do to improve my skills during this period? (Relevant areas are programming, security, machine learning)