Creating a program is always difficult. Historically, there's been a big tension with Rustconf, and that's that many people are still new to Rust, so serving them best involves accepting talks that are more broad, both in scope and difficulty. It's really hard to pick talks for something as big as a language ecosystem for a one-day, one track conference.

Last year, RustConf did one day, but two parallel tracks. Fourteen talks instead of seven helps a lot, and lets you accept things in a much broader range of topics and difficulties.

2020 is... not a usual year for events. There are also more conferences these days, and with different focuses. Oxidize is very different than RustFest is different than RustConf is different than all the other various confs.