Where to Start with Science Fiction
Science fiction isn't prediction but thought experiment. Start with Bradbury, Le Guin, Chiang and Weir, and ask what it would do to us.

I.It's Not About the Future
Science fiction has an image problem. Mention it to a non-reader of the genre and they'll picture gleaming spacecraft, alien invasions, or dystopian teenagers sprinting through rubble. The genre contains all of those things, and some of them are wonderful — but they're not the point. The point, as Ursula K. Le Guin put it better than most, is the thought experiment: "what if?" and then — crucially — what would that do to us?
That distinction matters enormously when you're choosing where to start. Science fiction at its best is not prediction. It's a tool for examining the present from an angle that realism can't reach. Change one variable — invent a technology, shift a law of physics, relocate humanity to a hostile planet — and watch what human nature does in response. The settings are strange; the subject is always us.
II.A Few Doors In
The cleanest entry point is probably Ray Bradbury's The Martian Chronicles (1950), a book that barely behaves like science fiction at all. It reads closer to lyric prose: a series of linked stories about humans colonizing Mars and what they bring with them, including their worst habits. Bradbury was never interested in the engineering. He was interested in longing, loss, and the American habit of ruining beautiful things. It's quiet, melancholy, and entirely accessible.
From there, Ursula K. Le Guin's The Left Hand of Darkness (1969) is one of the few genuine masterpieces the genre has produced. Set on a planet where no one has a fixed biological sex, it asks what gender actually does — to identity, to politics, to love — by removing it for examination. Le Guin called science fiction "a thought experiment," and this is one of the most searching ever conducted. It won the Hugo and Nebula Awards and has never really dated.
“Chiang is that rare thing, a technically rigorous writer whose sentences you also want to linger over.”
For something shorter and sharper, Ted Chiang's Stories of Your Life and Others (2002) — the collection that contains the story adapted into the film Arrival — is the work of a writer who treats scientific ideas the way poets treat images: as emotional precision instruments. Each story explores a single premise to its logical and human end. Chiang is that rare thing, a technically rigorous writer whose sentences you also want to linger over.
Readers who want more traditional pace and plot should try Andy Weir's The Martian (2011), which is essentially a Robinson Crusoe survival novel set on Mars. The science is painstaking, the voice irresistibly funny, and the book is all but impossible to put down. It's a warm bath of competent-person-solves-problems storytelling, and there's nothing wrong with that being your way in.
For those drawn toward the darker and more expansive end, Octavia Butler's Kindred (1979) is where many readers discover that the genre can do something literary fiction rarely manages: use strangeness as a vehicle for historical reckoning. A Black woman from contemporary California is dragged back in time to antebellum Maryland — against her will, repeatedly — and the novel becomes one of the most uncomfortable and necessary meditations on American slavery ever written. Butler is the genre at full moral stretch.
III.The Variable You Change
One useful trick for finding your footing in science fiction is to notice which kind of thought experiment interests you most. Weir changes the environment; Butler changes the situation; Le Guin changes a social fact; Chiang changes a law of perception or logic. The question isn't whether you like science fiction — it's which variable, altered, makes you lean forward.
Abandoning a book that isn't your particular kind of experiment is fine; the genre is vast and varied enough that the wrong entry point can make the whole thing look unwelcoming. Pick the door that fits the question you're already asking. The literature will do the rest.