Today’s first glitch:
This one is a basic comma splice. Replace the comma after dead with a period.
“It’s not that we can’t come back from the dead. It’s actually fairly easy. It’s just that no one wants to.”
Here’s a different way to punctuate it, with minor changes to the words: “It’s not that we can’t come back from the dead — it’s actually fairly easy — but just that no one wants to.” The em-dashes in this version are to indicate abrupt change in thought, inserted into the middle of something else.