User blog comment:Dispelling Mage/Chapter: Fairy Heart (451) - Review/@comment-26287497-20150908123806/@comment-25395791-20150912075116

It can make sense, but what if they didn't know they had an infinite Magic supply in the first place? :P At that time, no one, except the Guild Masters, knew about Fairy Heart and Makarov couldn't explain the situation to save it in any way since he was trapped inside of a Lacrima. Also, if I'm correct, he didn't remember a thing in the end. But either way, he would've had an infinite source of Magic either by crashing the Lacrima with Extalia or just by keeping the Lacrima, unknowingly having it already. I don't think anything proves the truth behind his words when he said that the source will last for decades. I think he was rather looking at the size and then make an assumption, if anything. .-.