What is the difference of using "going to" instead of "will" in this context?

[svetlana14]

In 0:00 the woman uses "you will learn the difference...". [

]. What is the difference of using "going to" instead of "will" in this context? More often such video lessons begin with words like "in this lesson we are going to". Thank you.

 

[Rover_KE]

Effectively, there's no difference.