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Thanks for the UMAP suggestion. Will add. Most of the authors are actually missing. Full processing would have yielded multi-trillion row dataset. I didn't rally have that kind of compute with me. I have even tried running the cross-join on BigQuery... after one hour, only about 3% was done.. so, had to cancel it.
Update: Added UMAP... this is so freaking cool.. thanks for suggesting. It's on the insights page: https://hn-buddies.stupidlabs.lol/insights under "Author Map" heading.
Super cool! I notice the projection captures the seperation better than the clustering does though. How did you cluster?