“Be going to” or “Will” I searched into the Cambridge webpage and it describes it as below. So a key point is the difference when both of them suggests “predictions” In that case, is it correct to say that ‘will’ generally indicates the speaker’s prediction or certainty about the future, often without specific evidence, while ‘be going to’ suggests the speaker has evidence or observes present conditions supporting the prediction? 1) BE GOING TO a) Intention b) Predictions -We use be going to to predict something that we think is certain to happen or which we have evidence for now: ・It’s going to snow again soon. (The speaker can probably see dark snow clouds.) ・Look out! He’s going to break that glass. c) Commands 2) WILL a) Predictions We use will and shall to make predictions and to state facts about the future: ・There will be strong winds tomorrow in the south of the country. ・The year 2025 will be the four-hundredth anniversary of the founding of the university. ・We shall need an extra bedroom when the new baby arrives. b) Decisions and Offers