George Wither: Nec habeo, nec Careo, nec Curo ( "I have not, I want not, I care not") and
John Taylor : Et habeo, Et Careo, Et Cureo ("I have, I want, I care)
Both putative authors, George Wither and "John Taylor"(the waterpoet) did not mention the vivid delineations and pure confessions of his opponent author with a single word .

»My intent was to draw the true Picture of mine own heart, …who knew me outwardly, have some representation of my inside also...«
»Heare, what I have not… I have not of my selfe, the powre or grace, To be, or not to be; one minute-space.)
»As when I dye, one promist me a Grave«. »A Grave; that quiet closet of Content«. »And I have built my selfe a Monument«), »But (as I live) excepting only this; Which of my wealth the Inventory, is«
(»I do not for these ayrie Titles care«), (which fooles, and knaves, as well as I may weare) or that my Name (when e're it shall be writ) should be obscur'd with twenty after it.)«
»I care not so I still my selfe may be«), what others are, or who takes place of me«

2-3 years prior to the appearance of the First Folio Taylor (Dec.1623) knows about deceased authors (such as Shakespeare [did in art excell], Sylvester, Beaumont, John Harrington) and about living authors ("there are living at this day"..."which do in paper their true worth Display", such as »Davies, Drayton, and the learned Dun, Jonson, and Chapman, Marston, Middleton, Rowlye [Rowley], Fletcher, Wither, Massinger, Heywood and all the rest where e'er they are«):, "...must say their lines, but for the paper sheete..", ... "had scarcley ground, wheron to set their feete.").
In plain language: almost all of the yet living authors, did not really exist but only could be read on a paper sheet (of a book), as pseudonyms.-
Both authors, Wither and Taylor, in the same year 1621, with almost the same title cover, with the same but complementary subtitle, care about the same topic , their name and reputation.-
Are we really to believe Shakespeare experts that Georg Wither and John Taylor have nothing to do with each other, both in 1621 dealing with their loss of Reputation, Name and Identity?
Why no reasonable or plausible theories (such as the Marlowe-Shakespeare theory) have ever been developed for these astonishing observations?