It can be challenging to caption scenes with multiple speakers. Bottom-center caption placement is far from ideal for readers when it fails to clarify which captions belong to which speaker. Adding to the difficulty: speakers often talk quickly, interrupt each other, and overlap their speech to show collaborative support. When captions are placed underneath or next to each speaker, readers can more quickly distinguish — at a glance — who is speaking.
Read the full post on my personal website: https://seanzdenek.com/2020/03/20/positioning-and-styling-captions-when-speakers-overlap-and-interrupt/