On Wednesday, 14 June 2017 at 12:08:16 UTC, Mike wrote:
* Drop the GC or at a minimum make it opt-in. Add a borrow checker, automatic reference counting, or some other GC alternative that doesn't require a separate thread.

AIUI D's GC doesn't use a separate thread:

"1. Stopping all other threads than the thread currently trying to allocate GC memory.
2. ‘Hijacking’ the current thread for GC work."

An earlier bullet point is confusing:
"Normally, all threads other than the collector thread must be halted while the collection is in progress."

Probably 'other than the collector thread' should be removed - 'collector thread' implies asynchronous collections.

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