What is the possibility that writing letters will be replaced by e-mail?

E-mail and letter writing are both communication methods, but the usage scenarios are different. E-mail is more convenient and faster. It can send files in various formats such as text, pictures, audio and video, and can view and reply at any time. Writing letters takes a certain amount of time and energy, but it is more formal and personalized, and can express more feelings and care.

So I don't think email will completely replace writing letters, but will be saved and developed separately. On some occasions, such as business letters and thank-you letters, writing letters is still an important way of communication.