There is no evidence we have reached runaway warming yet, and while there are positive feedbacks, there are also negative ones as well. We have not accounted for all of them, which means we should keep trying.
The evidence is not there to suggest fatalism yet, and even if it were, the impacts occur on a spectrum.
> There is no evidence we have reached runaway warming yet
There is evidence, which the various papers on the issue point to. It is not irrefutable evidence, but the nature of the question is such that there cannot be irrefutable evidence. For some reason, confusing “not irrefutable evidence” with “no evidence” is common on HN in both scientific and legal discussions.
The evidence is not there to suggest fatalism yet, and even if it were, the impacts occur on a spectrum.