Why is Stranger Things season 4 being split into two parts?

In an unexpected turn of events, Stranger Things season 4 will be split into two parts -- though Netflix has a good reason for doing so.

Stranger Things' Season 4 will be split into two parts, premiere dates set for both

Stranger Things Season 4: Premiere Dates Revealed for Two Volumes

STRANGER THINGS 4 PREMIERE DATES ANNOUNCED; SEASON 5 TO BE THE LAST – The Con Guy

Stranger Things' Season 4 Volume 2 release time, date, trailer, runtime, episode lengths, spoilers, theories, and more

Stranger Things Boss Reveals the Real Reason for Splitting Season 4 In Two

Here's Exactly How Stranger Things 4 Will Be Split Between Volume I and Volume II - Bloody Disgusting

Stranger Things 4 Will Be Split in Two Parts, With Season 5 As Its Finale — Pop Culture Planet

Stranger Things' season 4 to be split in half, premiere dates announced - It's a Southern Thing

Stranger Things Season 4: Everything to Know