Shatter

In Era 2, Scadrial made a huge leap from 19th-century tech (like horses, revolvers, and wooden ships) to mid-20th-century tech (cars, auto-fed guns, battleships, and atomic bombs) in just a decade. That’s like progressing at five times the rate of Earth's technological advancement. Plus, Kelsier asked Harmony to SPEED THING UP EVEN MORE! If this rapid advancement continues, there's a chance Wax could still be around in Era 3 (which will be a late Cold War-style setting).

What does Brandon Sanderson have against aluminium? It blocks both Shardblades and the Metallic Arts...

In "The Sunlit Man," we encounter a Scadrian spaceship manned by scientists affiliated with the TimeTellers, a political faction on Scadrial. These scientists are a part of the official Scadrian Space Force and are deeply involved in research related to the escalating arms race between Scadrial and Roshar. Additionally, the story reveals that steelpushing has been integrated into everyday devices, making this powerful ability accessible to the general public. What other intriguing spoilers have you come across?

Why is the eastern side (Frostlands) of the Rosharian supercontinent cold, the middle-east temperate (Alethkar), the central region (Azir) a desert, and the western side (Shinovar) more tropical? Is he magnetic pole on the side or something and that is the North noted on the map?

I mean he will add Discordium to Harmonium. Like we had Atium and Lerasium, now we will have Harmonium and Discordium.

In Era 1, we had Atium and Lerasium and Era 2, we got Harmonium. Is it likely that we will get Discordium in Era 3?