Do you think all means of communication will exist in the future? why? ответ в 5 предложениях

In my opinion, not all types of communication will remain alive in the future. I think post offices will disappear in future because every person will use e mail. Landline phones will disappear too as mobile phones are more functional and comfortable. Traditional communication loses ground every passing day, the biggest blame being the fast development of technology. If it ' s okay or not, we will not know until the day when a revolution in communications will happen.