>First, how will Facebook or any other entity that takes on the responsibility to fact check stand up to coordinated misinformation campaigns like “Iraq has WMDs” where an omniscient fact checker could have literally saved thousands of lives.
It gets worse. We did find WMD's in Iraq [1]. But those were Chemical weapons and obviously not the WMD's we were looking for in the first place. So even your omniscient fact-checker would be implicitly lying, as while the statement “Iraq has WMDs” is objectively true, it isn't precisely true that they have the WMD's which there was a coordinated misinformation campaign about. Even with objective truth, a fact-checker could be selectively used and misused for nefarious purposes.
It gets worse. We did find WMD's in Iraq [1]. But those were Chemical weapons and obviously not the WMD's we were looking for in the first place. So even your omniscient fact-checker would be implicitly lying, as while the statement “Iraq has WMDs” is objectively true, it isn't precisely true that they have the WMD's which there was a coordinated misinformation campaign about. Even with objective truth, a fact-checker could be selectively used and misused for nefarious purposes.
[1]: https://www.nytimes.com/interactive/2014/12/03/world/middlee...