Just re-read the last few updates to cement in my mind exactly...

Just re-read the last few updates to cement in my mind exactly what we are expecting to have analysis completed on in under six weeks, and am still confused. The announcements read like we are expecting a fully functioning megabit memory, per October 2020 and February 2021 updates, but they go on to say that if this platform lot is successful, then it's expected that we proceed to fabricate wafers with chips that operate as fully functional megabit memories.
IF we are expecting fully functioning megabit memories next month, then what difference is there between the final "Show and Tell Megabit Chips" and those expected in June?
Any help understanding this would be appreciated.