Who has been projecting FTL as a realistic technology ever? FTL is not possible according to the current laws of Physics, while AGI is at least not forbidden by them.
I think this should be something you can answer for yourself by looking at human media and news over the lasy 100 years. I find it hard to belive you haven't ever noticed anyone seriously saying we may possibly have FTL sometime in the future. Incidentially I think I read on HackerNews that Sam Altman has been talking about building Dyson Spheres in the future. I suppose they're not forbidden by the current laws of phyisics either, but I don't know if I would call them a realistic technology.
The IQ of the smartest human, the perfect memory storing and recollection of computers, the fact that it never tires. I don't know if it's AGI but it's already something greater than us.