G'day,

Instant death, say by disintegration in an explosion, being nuked, provides instant access to the afterlife without the dying bit.

But, the afterlife will continue as it does for everyone.

Most, in such cases, do not know they have died.

This is very common.

Most people spend a lot of time processing their death, by reliving it over and over, until they realize it. Then they move on to processing the rest of life.

I do not think instant death affects attachments and etc in any way different from any other slower type of death.

All attachments fall away upon death, I think.

Robert