Article is full of shit and reads like the product of some barely-literate shitskin. "diameter from 10 to 30 miles across" - redundant phrasing "high-speech magneto-levity trains" - nothing about this is proper English "with 1500mph speed" - ESL tier at best "88.3 square miles deep" - NOT HOW THINGS ARE MEASURED "100 secret-exists" - again, reads like street shit And finally we have the author's bio: https://files.catbox.moe/lstdj0.PNG "Addison" claims to be an English teacher, but her bio is written in pajeetlish with mix & match narrative perspective and unnatural phrasing. The author either shits in the street, or is a retarded algorithm throwing bits and pieces together to make an "article."