Regarding safety, no benchmark showed 0% misalignment. The best we had was "safest model so far" marketing speech.

Regarding predicting the future (in general, but also around AI), I'm not sure why would anyone think anything is certain, or why would you trust anyone who thinks that.

Humanity is a complex system which doesn't always have predictable output given some input (like AI advancing). And here even the input is very uncertain (we may reach "AGI" in 2 years or in 100).