Другой английский inter alia

One way of establishing the meaning of BE GOING TO and WILL is to look at some clear contrasts, and also to consider some examples in which both are used:

(1)The paint will be dry in an hour. (2)The paint is going to be dry in an hour. In the first there is the implied condition "if you leave it", "if you are patient", In the second there is inevitability; nothing will change the future event. While, then, the first might merely counsel patience, the second might be a warning "Do something quickly".