Just had the idea to share my experience when I tried this in February. Previous Experience: Had played world 1 before Goal: Actually get it right on the first try with ~90% confidence

Approach:

• I wanted high legibility on my thoughts, to increase surface area, that I can reflect on

• thinking out loud with screen + audio recording

• thinking through writing (e.g. "assumption: ...", "plan A", "realization", "insight")

• durations (e.g. 4min) to allow me to see my speed at a glance

• Fatebook predictions for my solution working

• Feb08 at 20:00 I played world 2 level 1: took 45min + 20min of reflection

• Feb23 at 05:40 I played world 2 level 2: took 40min + 20min of reflection

• Feb23 at 07:00 I played world 2 level 3: was quite easy, so I found 5 solution candidates. My confidence ranging from 65%-90%; all ended up working

My initial idea for both level 1 and level 2 would have failed though I knew to continue and then found a correct solution. I like that this exercise gave me a glimpse of what it feels like to solve a problem that you felt stuck on. I think it is useful for me continue this exercise

If it's useful feedback to you, I can send you my notes (3 levels) and the recording (only first level)

Yes. See archive.org of original it has the same title and the same duration (Look for <meta itemprop="duration" content="PT51M25S"> in the archived HTML; compared to the 51:24 of your link).
I have edited the Wiki, thanks for finding the link!

Yes, that's what the source code says. There are even two explicit guards against it: "make sure you don't land on an impossible reward" and .filter(r => r.weight > 0).

@habryka has the void virtue, though is missing empiricism.  

Maybe he got it prior to the commit introducing the weight: 0 or via direct access to the database.

I didn't find another way of gaining the virtue.

or whatever device you prefer

Note: The current Android App does not support playing player-made levels