When the headset comes off, though, it’s back to a dreary reality. And lately van Schneider has been noticing some unsettling lingering effects. “What stays is a strange feeling of sadness and disappointment when participating in the real world, usually on the same day,” he wrote on the blogging platform Medium last month. “The sky seems less colorful and it just feels like I’m missing the ‘magic’ (for the lack of a better word). … I feel deeply disturbed and often end up just sitting there, staring at a wall.”