The Dude in Rail Crossing sends you to get him a stash of Mushroom Brew...
So I'm in Deep Caverns, reading logs in the Caerus Residential Apartments.
There's an apartment of a Dr. John Dyson. He's involved in joint research with Dr. Bianca Helting in the "fungal forest project". She's an expert of mycology.
She refers to Dyson as "Dude" in one of her logs. There's other references to 'Dude' in other logs.
So you have a Dr Dyson aka 'Dude' doing research in a fungal forest, and the Dude in Rail Crossing wants mushroom brew.
Same person? Is Dr Dyson the Dude? If so, that makes him a lot older than he looked in Rail Crossing.
And also more than 'just a strange dude in Rail Crossing'..
Hmmm.., interesting..
