Given the tweet "Sorry to burst your bubble but it isn't that century anymore. Welcome to the 21st century.", classify the sentiment expressed by the author into one of the following categories: 3: very positive emotional state can be inferred, 2: moderately positive emotional state can be inferred, 1: slightly positive emotional state can be inferred, 0: neutral or mixed emotional state can be inferred, -1: slightly negative emotional state can be inferred, -2: moderately negative emotional state can be inferred, -3: very negative emotional state can be inferred.
0: neutral or mixed emotional state can be inferred