Senna — When Poetry Drew Blood

The Licensed Troll

In early Irish and Celtic cultures, poets held a social status roughly equivalent to nobility. This was not a metaphor. It was not an honorific. It was law. Under the Brehon Laws — the legal system of Gaelic Ireland, which governed the island for over a thousand years — the highest rank of poet, the ollamh, had the same honor-price as a king. Poets could travel freely between kingdoms. They were exempt from military service. They had legal protections that ordinary people did not.

In exchange for this status, poets were expected to praise the generous and curse the stingy. The praise was a public relations service — the equivalent of a favorable press mention, an endorsement, a reputational boost delivered in a form that people memorized and repeated. The curse was senna — satirical verse believed to have physical, supernatural effects on its target.

A civilization that gives its poets the legal status of kings and expects them to use verse as a weapon is a civilization that has understood something fundamental about the relationship between language and power. It has understood it well enough to build a legal system around it.

The Weapon

Senna — also aer, glam dicenn, and other specialized terms depending on the type and severity — was not figurative. In the Irish literary and legal tradition, satire composed by a qualified poet could raise blisters on the face of the target, cause rats to leave a king’s household (a sign of divine disfavor), strip a king of sovereignty, or kill.

The key word is “believed.” Whether a four-line verse actually caused dermatological symptoms is not the point. The point is that an entire civilization organized its power structure around the assumption that words, properly arranged by a qualified professional, were a weapon equivalent to a sword. And they legislated accordingly.

This is not primitive superstition dressed in legal language. This is a society that took the power of language seriously enough to regulate it. Modern societies spend billions on content moderation, defamation law, and speech regulation. The Celts did the same thing, with better poetry and clearer rules.

The Legal Framework

The Brehon Laws regulated satire the way modern law regulates firearms:

Unjust satire was a crime. If a poet composed satire without cause, the poet owed compensation to the target. The fine was the same as for physical assault. This is significant. The legal system treated an unjustified satirical verse as equivalent to an unjustified punch in the face. The underlying assumption — that words can cause harm equivalent to physical violence — is identical to the assumption that drives modern hate speech legislation, except the Celts had the honesty to state it explicitly and the sophistication to build graduated penalties around it.

Just satire was protected. If a king was stingy, broke his word, or violated custom, a poet had the legal right — arguably the legal obligation — to satirize him. The satire was not merely permitted. It was a mechanism of accountability. The king who violated his obligations was supposed to be publicly shamed. The poet who failed to shame a bad king was failing in his professional duty.

Degrees of satire existed. From mild mockery to the nuclear option — glam dicenn, the most powerful and dangerous form, which required specific rituals and was believed capable of causing death. Each degree had defined legal consequences and defenses. The graduated system meant that a poet could choose the level of response appropriate to the offense, from a light roast to a career-ending condemnation to what amounted to a magical death sentence.

Poetic immunity protected the satirist. Provided the satire was justified. An unjust satire removed the protection. The poet who satirized without cause lost the legal shield and could be prosecuted. The system incentivized accuracy. If you were going to deploy the weapon, you had better be right about the target.

This is a formal, legal, institutional framework for trolling. The Celtic world did not merely tolerate provocative speech — it professionalized it, credentialed it, and gave it the force of law. The poet was a licensed troll.

The First Satire

The foundational story comes from the Cath Maige Tuired — the Battle of Mag Tuired, one of the most important texts in Irish mythology. The poet Cairbre mac Etaine visits King Bres and is given terrible hospitality: a dark room, no food, a dry bed. This was not merely rude. In the Irish honor system, hospitality was a legal obligation, particularly toward poets. Denying hospitality to a poet was an offense comparable to — and legally equivalent to — denying hospitality to a king.

Cairbre composed the first satire in Ireland:

Without food quickly on a dish, Without cow’s milk on which a calf thrives, Without a man’s habitation after darkness, Without paying a company of storytellers — let that be Bres’s condition.

Four lines. The satire caused blisters to rise on Bres’s face. Under Irish law, a blemished king could not rule — physical perfection was a requirement of sovereignty. Bres was deposed.

A four-line Yelp review caused a change of government. The review was posted approximately 1,500 years before Yelp existed. The mechanism was identical: a public account of poor service, delivered to an audience that cared, with consequences that the service provider could not escape. The technology was different. The human dynamics were not.

The Poets vs. The Kings

Irish literary tradition is full of accounts of poets leveraging the threat of satire for personal and political gain. The Book of Rights and the Dindsenchas contain multiple examples of poets traveling with large retinues of students — essentially professional entourages — and demanding extravagant hospitality from every king whose territory they crossed. The implicit threat was always present: refuse the poet, and the poet composes a satire. The satire causes blisters, or worse. The blistered king cannot rule.

By the 6th century AD, the poets had become so powerful and so demanding that the kingdoms wanted to abolish the entire order. The trolls had gotten too good at their jobs. They were shaking down every king in Ireland with the threat of weaponized verse, and the kings had had enough.

At the Convention of Druim Cett in 575 AD, the kingdoms convened to decide the question: should the poetic order be abolished?

Saint Columba argued for a compromise. Reduce the poets’ retinues. Restrict their more extortionate practices. Limit the size of their traveling parties. But preserve the poetic order and its right to compose satire, because the poets served a function that the society needed. They held kings accountable. They preserved history. They maintained cultural memory. They were, in modern terms, the free press, the judiciary, and the bard all rolled into one, and abolishing them would leave the power structure without a check.

The poets survived. Their power was curtailed but not eliminated. A society debated whether to ban its trolls and decided the trolls were too valuable to lose.

This happened in 575 AD. The debate has not been resolved. Every deplatforming decision, every content moderation policy, every argument about the limits of free speech is a version of Druim Cett. The question is always the same: are the trolls too dangerous to keep, or too valuable to lose? The Celts answered: both. They regulated rather than abolished. They licensed rather than banned. They understood that a society without its provocateurs is a society without accountability.

The Welsh Parallel

Welsh poetry had a parallel tradition. The awdl and cywydd forms included satirical modes. The Triads of the Island of Britain reference “Three Harmful Satires” that caused lasting damage. Welsh law similarly recognized the poet’s status and the power of verse, though the tradition of physically harmful satire is less developed in surviving Welsh sources than in Irish ones.

The pattern held across the Celtic world: wherever Celtic law operated, poets were aristocrats, satire was a weapon, and the legal system regulated both.

The Scottish Tradition

The Scots Gaelic tradition of aoir (satire) extended the Irish model into the Highlands. Iain Lom, who lived from approximately 1624 to 1710 and served as the unofficial poet laureate of Clan MacDonald, composed satires that were feared across the Scottish Highlands. His satirical attacks on the Keppoch MacDonalds are credited with shaming the clan into military action. In the Highland tradition, a poet’s satire could do what a chieftain’s command could not: compel action through shame.

The tradition survived into the modern era. The Gaelic satirical tradition influenced Scottish literary culture well into the 18th century, and echoes of it persist in the sardonic, combative style of Scottish public discourse — a style that anyone who has attended a Scottish parliamentary debate or read a Glasgow newspaper’s letters page would recognize instantly.

Words as Weapons — The Thesis

The Fires series establishes that trolling is a form of conflict conducted through language rather than violence. Senna takes this literally. The Celtic world believed that language, properly deployed by a qualified professional, WAS violence. A satire could cause physical harm. This was not a metaphor for “words can hurt.” This was a legal and cultural framework that treated specific arrangements of words as equivalent to specific applications of force.

The modern version: a viral tweet destroys a career. A meme shapes an election. A coordinated campaign bankrupts a company. We treat these as novel phenomena — products of the internet age, consequences of social media, aberrations of the attention economy. The Celts would recognize them instantly. They had laws for this. They had sentencing guidelines.

The concept of the ollamh — a poet with the legal rank of a king, licensed to deploy satire as a weapon against those who violated their obligations — is the Fires series thesis in institutional form. Society needs its trolls. It needs people whose job is to tell the powerful what the powerful do not want to hear. The Celtic solution was to make those people aristocrats with legal protection. The modern solution is to make them Terms of Service violations.

Which approach produced better governance?

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