Lars Karbo (known as larskarbo or gaptrast) is the founder of Napchart.
He attempted E3 and Uberman in 2014, and started making Napchart to help himself succeed. His polyphasic experiments failed, but he continued to work on Napchart, and is still keeping it alive today.
His interest in sleep has stayed with him. From 2018-2020 he worked in a neurotechnology startup, Drowzee, making a device to treat insomnia.