Board Thread:Theories and Speculation/@comment-36512555-20200302063012/@comment-32685487-20200305065746

Naruto said he couldn't sense the limit of the chakra, this was before SPSM, as an SPSM his sensory abilities are even better. SoT can seal the Juubi as there is literally nothing stating it can't or that it has a limit and to add one is speculation alone.