I have to leave the computer at iCenter. According to the iCenter tech staff, it’s likely an SSD problem. Honestly, I have no idea what is ssd. 
They said it’s a known problem. There’s a batch of units that have defective ssd’s, and it seems that my unit is so lucky to be probably part of that batch.
It will probably take 2-3 weeks before I could have it back. 
Funny, how I’m not particularly attached to this computer. I’m feeling that it returned my feelings by going boinkers. I still miss the “unsophisticated” look of the old thinkpad.
Anyhoo, dear Lord, please make it well. I promise I will really be fond of it.
(The white screen)