He is an engineer, not an architect, or even a civil construction engineer. He has noted a few times, he has no idea, and did no calculations, his modus operandi is just to (hopefully) overbuild any requirements of strength. He is probably overbuilding some strength 10x what worst case scenario could be, but it still leaves an avenue for error since he doesnt entirely plan it out fully with simulations.
If the ground shifts and her neighbors yard ends up filling the tunnel, she's exposing her neighbors to the risk of a sinkhole. Fairly small risk considering the size of the tunnel but still a risk I'd like evaluated by someone competent if I was their neighbor
She lives close to other houses so we're just taking her at her word that she isn't undermining any of them. Even if she believes she isn't, how does she know for sure with no real training?
But on December 30, Bogado posted a TikTok video disputing this account.
She said she had tracked down Kala's location and contacted her neighbors, discovering many of them were "migrants from Central America" who chose not to report the digging despite their health and safety concerns because they were worried about immigration authorities.