In laser b1 student's book there's the following example in grammar section about present perfect:
I have believed in ghosts ever since that night. It seems to me that sentence I've assumed that machine learning has the future since I was at that conference. is grammatically the same, but i feel that it is incorrect, although I can't explain, why.
Please, explain, why is it correct or incorrect. Can we use assume in such context?
Update: I'm also confused about using "I was at the conference", I'd feel fine about "I attended the conference" . But "I've assumed" and "I was" are appropriate here, arent' they?