Seneca wrote that “Nothing, Lucilius, is ours, except time. What Seneca meantHis point in that first letter, titled ‘On Saving Time,’ is narrow and sharp. He called the worst kind “the most disgraceful kind of loss”, the loss due to carelessness. But the three things he names, doing harm, doing nothing, and doing things beside the point, are recognizable enough that the exaggeration lands. Worldwide, the typical internet user now spends 6 hours and 40 minutes a day online across all their devices.