Can someone please explain the details around the Dharma Initiative orientation tape that had the missing clip which was subsequently found in a book and spliced in? Why was the clip cut out? Do we know this? Thanks.
We never found out, and we likely will not tonight.
My hope is some of the other media (books, games, etc.) that will inevitably be released after the series ends will explain it.
Probably just something batshit insane Radzinsky did to pass time. Maybe to mess with Kelvin. Nothing of importance, anyway.