I am traumogenic (trauma created/clinical DID) plural system. It is highly likely that I never had a "core personality" that I was born as and instead have always had either an infant mental state or multiple personalities. (During the time most babies begin to form a coherent personality, I formed several. It is possible that not every system forms like this but highly like I did)
Every time I've felt I was singular, I've experienced mental walls, amnesia and other DID symptoms. If someone could do a "I'm singular ama" that'd be cool because I have questions too. :)
Late to the party, but is your front evenly distributed amongst your alters, or do some dominate? Have you had the same distribution over time, or are there alters that have become more prominent or less prominent? Have any of you come into or out of existence that you can remember, or experienced some sort of discontinuity of personality?
What is intra-system communication like? Is it super fast, or is it the same speed as talking to an outside person?
Depends very much on the alter and every system is different. Some alters can get very involved. Others might want to front for a little bit and then stop without wanting to be the host. There is a pretty active alter who I adore that while vocal, I don't think she really wants the hosting jobs I hold. Some alters are currently entangled in trauma loops and still think the past is happening. They need help/rescue. Others only communicate a little bit. Many Minds on the Issue podcast has a few episodes on ways to get at least a small working team going and that if even only one alter wants to have a collective system then that alter should persist and keep trying.