What is this!? Is it edible?

Weston is in this stage where he put's everything in his mouth.  All four of our kids have been like this.  I am used to it...it keeps our floors a lot cleaner with live-in vacuum cleaners.  Only joking...it is kind of annoying, but just motivation to sweep and vacuum more often.  The other day I caught him studying this bit of sunlight coming in on the floor.  I think he was trying to decide if could cross over it...or if he could eat it.  It was funny just watching him...wondering what his little brain was thinking.  Love this little boy!

"What is this?"

"Maybe I can eat it!?"

"Can I cross it?"

"Looking good so far!"

"Mom's there...snapping pictures as usual..it is all good!"