Besides the mother being dead, another growing How I Met Your Mother theory is that Ted himself is dying or has Alzheimer's. After all, why would he sit his kids down and tell them the story of how he met their mom if something bad wasn't going to happen to him?
But here's the thing: if Ted was dying or had Alzheimer's, why isn't he writing this story down? Or tape recording it? Or videotaping himself telling the story? The kids aren't taking any notes, and it's unlikely they will remember every little detail of their dad's incredibly long story. If Ted archived the story in some way then the kids could hear/read/watch it over and over again and also show it to Ted's kids, grandkids, great-grandkids, etc. Also, let's take a look at Penny & Luke's attitude. If their father was dying or had Alzheimer's disease they would be a lot more sympathetic.
As a beloved fan of the show, I have many theories about why Ted decided to tell his kids the story during that particular time in 2030. It could be that Ted and the mother decided to have Robin, Barney, Marshall, and Lily be their kids guardians in case something happened to both of them, just like Lily & Marshall did with Marvin. Or it could be Ted waited until Luke turned 13 to tell the story due to all the sex and drugs. Whatever it is, we'll find out in less than a week.
But here's the thing: if Ted was dying or had Alzheimer's, why isn't he writing this story down? Or tape recording it? Or videotaping himself telling the story? The kids aren't taking any notes, and it's unlikely they will remember every little detail of their dad's incredibly long story. If Ted archived the story in some way then the kids could hear/read/watch it over and over again and also show it to Ted's kids, grandkids, great-grandkids, etc. Also, let's take a look at Penny & Luke's attitude. If their father was dying or had Alzheimer's disease they would be a lot more sympathetic.
As a beloved fan of the show, I have many theories about why Ted decided to tell his kids the story during that particular time in 2030. It could be that Ted and the mother decided to have Robin, Barney, Marshall, and Lily be their kids guardians in case something happened to both of them, just like Lily & Marshall did with Marvin. Or it could be Ted waited until Luke turned 13 to tell the story due to all the sex and drugs. Whatever it is, we'll find out in less than a week.