Look at this dip during the last week !
Source : ClimateReanalyser.org and NSIDC
Could it be an anomaly with satellite imaging, a random statistical blip, or is something huge just about to start ?
Even those don't mean it's straight for rock bottom.
A tipping point means a point of no return. It will never improve beyond that point. Extent of ice won't show you that. Otherwise when the extent is at its lowest in March, it would never come back.