Since it was not mentioned in the post, here's a direct link to the Reddit comment corpus likely being used: http://files.pushshift.io/reddit/comments/ The full table (up to end of 2015) is available on BigQuery, with separate tables for each month thereafter: https://bigquery.cloud.google.com/table/fh-bigquery:reddit_p... (there is a similar table for comments) And here's a year-old post I wrote on how to use that R…
Even training models on that is possible in realistic times on normal systems with that.