Lets postulate some puzzle pieces. Either those provisions are still in full force and effect, or the Constitution has been rendered superfluous by the Sixteenth Amendment. For, if the government has an unlimited authority to tax, recent history teaches us that it will continue to abuse all other notions of limited government. Otherwise we might likewise believe that continuously increased transfusions of fresh blood will cure a vampire. Without security for property there is no liberty.
Lets assume the Sixteenth Amendment was intentionally worded to deceive or mislead.
Anyone who cannot imagine this to be a reasonable possibility has but to read the Amendment for the first time. Lets also assume that even though it was written to deceive, there are other proofs or references in existence that the establishment purported intent has been implemented to one degree or another. If that were the case, we might expect to find that there are provisions within other written tax laws that prove to any reasonable person that this must be the case. If the amendment actually extended the taxing powers of the federal government, we can reasonably expect that there would be statutes, regulations, forms and procedures within the written law providing for the implementation of these new-found powers. We would expect to see evidence that the Amendment was followed almost immediately by new statutes to tax the new subjects of taxation.