He once also wanted to try suicide to see if it could activate this ability, but ultimately he gave up after hesitating for a long time because he was afraid that the ability wouldn't work after suicide, and what if he really died,"If I could go back a year, there must have been some major disaster. It needs to be reported to the national authorities so they can prepare in advance...",“I don't know, we’ve sealed off the perimeter. Who knows how he got in…”。