Comment écrire de la Fantasy et de la Science-Fiction

The book covers two distinct genres that often have different storytelling conventions. I'm curious whether the author saw a shared core or wanted to highlight their differences.

The techniques seemed useful but also complex — how do writers balance detailed lore with maintaining pacing? Would love to hear if others have found effective ways.

The insights seemed solid, but I wonder how accessible this advice is for writers still figuring out their style. Are there tips here that really stand out for beginners?