In this, the – at least for the time-being – final episode of his podcast on William Shakespeare's Sonnets, Sebastian Michael offers a brief summary of his findings and also takes the opportunity to examine in a little more detail the view held by some contemporary editors that the sonnets may not principally be about a Fair Youth and a Dark Lady – a contention that is largely based on a supposition that many of these poems "could be addressed to a male or a female" as one recent edition puts it – to see whether it stands up to scrutiny as we formulate any conclusion.

In this special episode, Sebastian Michael is joined by architect, author, and coder Miro Roman to talk about their experimentation with applying a machine learning approach to comparing the full text of William Shakespeare's Sonnets to the full text of his plays and narrative poems to examine whether such a methodology can confirm the rare word analysis research that has previously been carried out by Macdonald P Jackson and others towards dating the sonnets.

In this special edition of Sonnetcast, Sebastian Michael takes a closer look at our original source for William Shakespeare's Sonnets, examining in detail the few textual issues it presents, the much debated origin of the manuscript, and the dedication by its publisher Thomas Thorpe to a "Mr. W. H." which has been puzzling readers of these poems for centuries.

Following an established tradition at the time, William Shakespeare furnishes his collection of 154 Sonnets with a poetic Complaint that acts as a coda to the series.

Where he departs from common practice is in his deployment of an elaborate but for this no less effective distancing device that has an unnamed narrator set up the scene for us and then allows us to listen in on a conversation between a young woman and an elderly gentleman, as the woman relates how she long held out against the charms and wiles of a beautiful suitor but ultimately fell for him.

Also highly unconventional and genuinely surprising is the conclusion the young woman comes to at the end of her lament...

Sonnet 154 brings to a close William Shakespeare's collection of sonnets, and it does so hand-in-hand with Sonnet 153, of which it is not a continuation, but a reiteration.

Like Sonnet 153, the poem borrows directly from an epigram by 6th century Greek poet Marianus Scholasticus, and tells the story of Cupid who falls asleep in a mountain grove with his Torch of Hymen by his side. One of the goddess Diana's nymphs – in this version the most beautiful of them all – takes the torch and attempts to extinguish it in a nearby well, and in doing so inadvertently creates a hot bath for eternity.

In both versions by William Shakespeare, this becomes a place where men may go to find relief for their sickness or disease, whereby neither of the two sonnets specifies just exactly what kind of disease may be so cured and leaves it somewhat open to interpretation whether Shakespeare means merely the affliction of a love sickness, or whether he is also alluding, as is widely believed, to venereal diseases, most particularly syphilis, for which hot baths were considered to be a remedial measure, if not exactly cure, at the time.

Sonnet 153 is the first of two poems that round off the collection, both retelling the same story of a tired love god Cupid who falls asleep, having put down his torch beside him. This is taken up by a nymph who dips it in a cool fountain or well with the intention of 'disarming' Cupid, but the flame of the torch is so intense that it turns the pool into a hot bath where ever since men who are sick can go to find relief.

In this special episode, Sebastian Michael summarises the second part of The Sonnets by William Shakespeare in the 1609 collection and examines the questions they present in parallel to those posed by the Fair Youth Sonnets:

- Is there a Dark Lady at all?

- If so, who is it?

- And what, if anything, do these sonnets tell us about the poet himself, irrespective of who she is?

The last poem in the collection to address William Shakespeare's mistress directly, Sonnet 152 conclusively answers some questions, while leaving many old and several new ones open for us to ponder into posterity.

It asserts again that his Dark Lady is indeed 'dark', both in appearance and in character, and here makes a stronger than ever point of how he as the poet is perjuring himself by repeatedly, even continuously, saying things about her that are simply untrue; these things, notably, not being slanderous lies but favourable compliments.

The sonnet thus epitomises the form that Shakespeare with his highly unusual series either deliberately or accidentally creates: that of the anti-love poem to someone he just can't resist, even though he knows that in this he presents as deep a character flaw in himself as the ones he perceives in the person or people he professes to love or desire.