Yes, if you just let your mouse hover anywhere in the rectangle containing the post title, you will see something like this:
It looks like the TP software automatically takes the first 300 characters of the post and turns it into the 'title' of that rectangle (or that cell of the table that makes up that page).
How long that pop-up text displays is probably down to the settings of your own computer. I read something online that indicated it's directly related to the double-click speed set for your mouse.
The text will re-appear if you just nudge your mouse, but then you have to find your place again.
If you really want to read all the text, you can right-click anywhere in the rectangle and then choose Properties from the list. You will get a box like this:
You can drag the right-hand side of the box to make it longer and then click in the text and use the right arrow key to make it scroll. Bit of a faff really.