Who reached Level 100?

when I entered level 99, I realized, that you neet 10times as many points for level 100 as for 99. The exact values are - I reched level 99 with approx. 813.680 points and am now supposed for Level 100 to reach 84.803.00 points. Having played in average one hour per day everyday since approx. 5years, it would mean, that a player reaching level 100 would need to play 50years with the same schedule…. Is this a bug?