"If yesterday was two days ago tomorrow,
will the day after tomorrow be today or yesterday?"
—Temporal Manipulation 101 final exam, Tolarian Academy
"如果說昨天到了明天會變成兩天前，試問後天應該是今天或昨天？"
~陶拉里亞大學院時間操縱緒論期末考
我想應該不少人看過這題
之前我照自己的理解，覺得答案是都不對，不是今天也不是昨天，而是明天。
今天=D
昨天=D-1
前天=D-2
明天=D+1
後天=D+2
如果昨天到了明天會變成兩天前，這句的意思是如果到了D+1時，再看D-1，中間的差距會
變成2。試問後天(the day after tomorrow，也就是D+2)應該是今天或昨天？這句話其實
是陷阱，因為第一句的關係，目前的時間是D+1，而由D+1來看D+2，中間的差距是1天，也
就是說，這題的答案是「明天」。
但最近有人丟給我一個2005的FAQ
老實說我不太理解...
http://archive.wizards.com/Magic/magazine/
(接上面)article.aspx?x=mtgcom/askwizards/1105
November 9, 2005
Q: "I was flipping through the Ninth Edition spoiler on Gatherer, and I came
across Temporal Adept's flavor text. After about 20 minutes of critical
thinking, all I had was a headache. Is that question actually solvable?
Thanks!"