I did indeed have a very special day.
There was a Kafka-esque, creepy quality about the Silk Bulb Test that had me enthralled throughout. Does it actually matter if you press the correct buttons? Who knows.
The sound design was great, really immersive and had me checking behind my shoulder at every whisper or strange noise that I heard. It would be intriguing to find out how this is going to play out as a full game - I feel like I didn't find 'everything' in this demo and usually that means once I'm done, I'm out. But I may go back to this and find out what I'm missing.
Great game though, and very special days await in the future.