Yeah you need to do some more research on that one.I'd like to know how a bigger contact patch equals less traction.Guess those top fuel dragsters with 18" wide slicks are doing it all wrong.
Actually he was correct in a way....
Wider tires do help with pavement traction like on sports cars etc as they have more contact area with the road.
Also on sand because they will float on top, and really deep snow (Powder) with really wide tires, they will float on top also....
Also mud bogging, but that's not really normal, more on the extreme side needing really wide tires and speed to stay on top.
Now off roading on trails etc wider tires can hurt you in mud because they will just sit on top and spin instead of digging down and grabbing, takes a lot more for a wide tire to dig down and grab than a narrower tire. Also in normal loose dirt (like in a plowed field) you want a tire that will dig down and grab instead of sitting on top...
Same goes for wet snow (NOT powered) if the tire is too wide it will just sit on top and spin instead of digging down and grabbing like a narrower tire will.
There really isn't just one answer to all the questions, have to match the tires to the application, that's width and type of tire...
Depends on if the application needs a tire that will float or dig down and grab.... Wider tires for floating and narrower tires for digging down and finding traction.
There are tires developed for different conditions and surfaces so picking the tire that will work the best for what the person does with their vehicle is important.
And yes the really wide tires look cool, but for the most part they won't do anything more that the stock width tires can in MOST situations.
The type of tire matters more than the width does in MOST situations.
Then there is also driving skill that factors into that also.