'That's interesting about sci-fi. I really did think it was about weird worlds, and focused on the worlds, not the people. I shall give it a go.'
@MmePoppySeedDefage, no, absolutely not about weird worlds, the best science fiction is an attempt to understand humanity in the wider context of the Universe/existence, the dislocation from our current experience and/or the insertion of 'alien' situations allows for greater contemplation.
No-one thought the opium dreams of the Romantics were genre-fiction, but they absolutely were in the same way that brilliant science fiction writers release themselves from current ways of being, to allow themselves to think more freely about who, or what, we actually are.
In Xanadu did Kubla Khan
A stately pleasure-dome decree:
Where Alph, the sacred river, ran
Through caverns measureless to man
Down to a sunless sea
And Keats who was influenced by the opium-addled romantics;
When a vast image out of Spiritus Mundi
Troubles my sight: somewhere in sands of the desert
A shape with lion body and the head of a man,
A gaze blank and pitiless as the sun,
Is moving its slow thighs, while all about it
Reel shadows of the indignant desert birds.
The darkness drops again; but now I know
That twenty centuries of stony sleep
Were vexed to nightmare by a rocking cradle,
And what rough beast, its hour come round at last,
Slouches towards Bethlehem to be born?
What are both of those very well know poems if not science fiction/fantasy, epochs, imaginings free of convention.
But ultimately relating to the human experience.
I'd certainly recommend Ted Chaing, Story of Your Life and Others as an entry point if you enjoy literary fiction.
If you're interested in getting a bit of hard science in there, Tau Zero by Poul Anderson is an excellent novella that asks some pretty big questions whilst keeping the (enthralling) story very human.
I could go on!