“Write What You Know” Destroyed SciFi and Fantasy Fiction

Unchanging law of storytelling

There are few pieces of writing advice that have survived as long as the phrase, “Write what you know.” It has been passed from one generation of writers to the next as though it were an unchanging law of storytelling. The advice appears simple enough. If you know a subject well, you should naturally be able to write about it with greater authenticity than something completely unfamiliar. There is certainly wisdom in that idea, but I believe we have misunderstood what those four words were actually trying to teach us. Somewhere along the way, “write what you know” stopped meaning “understand how life shapes people” and instead became “write yourself.”

Modern storytelling has increasingly interpreted authenticity as writing characters who look like us, think like us, or share our experiences. Identity became the focus, while consequence quietly disappeared into the background.

I do not believe that was ever the intention behind the advice. If it were, fantasy as a genre would be impossible. None of us have lived as elves, marched beside dwarven armies, negotiated peace with dragons, or hunted monsters beneath forgotten kingdoms. By the strictest interpretation of “write what you know,” no one should ever attempt to write fantasy at all. Yet some fantasy worlds feel remarkably believable, while others, despite breathtaking artwork, detailed lore, and elaborate magic systems, somehow feel artificial. The difference is not imagination. It is logic. Readers do not believe a world because it contains enough details. They believe it because those details produce understandable consequences. A believable world is one where every extraordinary element changes the ordinary lives of the people who inhabit it.

Think about something as ordinary as a blacksmith. Before the character speaks a single word, you already expect certain things to be true. You imagine broad shoulders earned from years of swinging heavy hammers, scarred hands, soot beneath the fingernails, and a body shaped by repetitive labor. You expect habits as much as appearance. The blacksmith wipes sweat from his brow without thinking. He judges the quality of iron by its color. He notices warped hinges before he notices paintings on the wall. If instead the blacksmith appears with soft hands, perfect posture, immaculate clothing, and complains that lifting a hammer is exhausting, something immediately feels wrong. It is not because the situation is impossible. It is because the person’s life no longer explains the person standing before us. The consequence of the profession has disappeared.

That same principle applies to every believable character ever written. Human beings are shaped by what they repeatedly survive. The sailor walks differently than the farmer because years at sea have taught his body to anticipate movement beneath his feet. The physician notices injuries before faces because thousands of patients have trained the eye to search for wounds first. The carpenter unconsciously studies the beams supporting every roof he enters. A veteran entering a crowded room instinctively identifies exits, cover, and potential threats before he notices the decorations. A mother counts her children without realizing she has done it. None of these behaviors exist because someone wrote them into a character sheet. They exist because years of repetition transformed conscious effort into instinct. Readers recognize those instincts because they understand, consciously or not, that experience leaves permanent marks on behavior.

This is why I think modern storytelling often begins in the wrong place. We spend an enormous amount of time describing identity, but very little time explaining consequence.

We define our characters by what they are instead of what has shaped them. We tell readers someone is a knight, a wizard, a rogue, or a queen, as though those titles alone create believable people. They do not. Those are occupations and positions. They describe a role inside the story, but they do not explain the habits, fears, assumptions, and instincts that role would leave behind after years of living it.

Two knights serving the same king may wear identical armor and carry identical swords, yet become completely different people because they have survived different lives. One may have spent decades defending isolated villages where every decision determined whether innocent families lived until morning. The other may have spent the same decades inside the royal court where politics mattered more than battle and words carried greater weight than steel. Place both men in front of a frightened child during an ambush, and each will react differently, not because one is morally superior, but because each has been shaped by different pressures. Their history has become instinct, and instinct is what readers recognize as character.

Real people work exactly the same way. We are not simply collections of personality traits waiting to be activated by the plot. We are the accumulated result of thousands of experiences that have quietly changed how we think, move, and respond to the world around us. Every difficult conversation influences the next one. Every success builds confidence. Every failure creates hesitation. Every injury teaches caution. Every profession rewards certain habits until those habits become invisible. Eventually we stop choosing them altogether because they have become part of who we are. The body remembers. The mind adapts. Behavior changes. Those changes are not dramatic moments reserved for novels. They are the ordinary process of becoming a person.

This is why I believe the original advice has been interpreted backward. “Write what you know” was never asking writers to remain trapped inside their own biographies. It was asking them to understand the relationship between experience and behavior. I may never have lived as an elven ranger, but I understand isolation. I may never have commanded an army, but I understand responsibility. I know what disappointment feels like. I know exhaustion. I know hope, loyalty, fear, pride, and regret. Those are not fantasy experiences. They are human experiences. The writer’s task is not to copy reality but to understand how those experiences would evolve inside a different reality. Once you understand the pressures acting upon a character, the behavior begins to emerge naturally, regardless of whether that character is human, elf, dwarf, or dragon.

Fantasy should free us from the limitations of our world, but it should never free us from logic. Dragons would reshape transportation, architecture, warfare, and agriculture. Magic would change medicine, religion, law, and economics. A race that lives for centuries would not simply think like humans with longer birthdays. Their entire understanding of time, ambition, memory, family, and loss would evolve differently because their lives impose different pressures. Every fantastic element should force civilization to adapt, and every adaptation should leave permanent marks on the people who live within it. That is what makes fantasy believable. It is not the existence of impossible things. It is the logical consequences of impossible things.

Perhaps that is why so many modern characters feel strangely weightless despite being surrounded by beautifully imagined worlds. Too often they are built from the destination backward. The author already knows what the character must accomplish, what message they represent, or what role they must play inside the plot. Everything else is constructed afterward to justify that outcome. Real life works in precisely the opposite direction. People become who they are because countless pressures gradually push them toward certain decisions while closing the door on others. Their bodies shape their possibilities. Their upbringing shapes their assumptions. Their failures shape their fears. Their successes shape their confidence. Their environment shapes what they believe is normal. By the time we meet them, their behavior feels inevitable because it has been earned.

If I were rewriting the old advice for modern writers, I would NOT tell them to write what they know. I would tell them to write the consequences their characters cannot escape. Identity tells us who someone is. Consequence explains why they became that person. Once those consequences are understood, the character no longer feels like someone being moved through a story by an author. They begin to feel like a real person whose own life is carrying the story forward. That, more than any clever plot twist or elaborate magic system, is what makes fiction feel true.