The 140-character message limit has defined Twitter. But the company is now experimenting with its format, doubling the length of some users’ tweets to 280 characters. Why are they taking such an enormous risk, playing with the characteristic that defines and differentiates the service?
The reason is that Twitter’s user base has been stuck at about 320 million for some time. If this doesn’t change, entropy will set in and Twitter could collapse.
We can learn a lot about what Twitter is going through by looking at the time Coca-Cola decided to change