When I looked again a few minutes later, the train was on time.

We will be looking at this issue later in the chapter.

When Murray went to look in on her an hour later, she was gone.

When she went back to look for them a few days later, they were gone.

We look back at that part of the sky three minutes later and there's nothing there.

But now looking back two years later it seems unlikely that the movie will take place.

Here's what the world would look like a year later.

But he would be looking again a few seconds later.

He didn't need to make a mental note to look into the idea later.

I'll be looking at both these stories in more detail later.