It's interesting that there is such a focus on distractions and entertainment. It almost reads like "I attempted to operate my iPhone blindfold for 24 hours". What would a similar experiment be like without a smartphone being involve, I wonder?
24 hours is not that long biologically, you could take nothing but water and move only for the bathroom and be fine. I think there's a lot of value in intentionally experiencing understimulation but the focus on vision alone and not other forms of input undermines it.