Not an assumption. Betting patterns. Game opens UL -6. Overnight, immediately goes down to 5 1/2, and then 5. This morning, most of the public sees line for the first time. Line goes back to 5 1/2, then 6, then 6 1/2.
Chances are many paid services have Louisville. Same paid services a lot of the "public" followed yesterday. Now, these services are GOD to the bettor.
Now, if this game goes back to 5 1/2, before tip off, you will know. because BIG MONEY is coming in on Iowa. Stay tuned.
I have also looked at a couple consensus sites, 70 % are on Louisville. Most sharps don't make picks on these sites.