I don't know about others, but I am definitely using emails less these days, but it has nothing to do with Twitter.

Perhaps because my job is relatively mobile, I am replacing a lot of emails with WhatsApp and Line. I have even started to use voice messaging, because it allows me to convey the tone of my message without having to go into an actual "discussion" with someone.

Although after reading other's comments, I am not brave enough to say that this is the future of email...