"In F1 cars, the tech is through the roof and it's the pinnacle of aero[dynamic design], and they are the best teams in world," Button told BBC Sport.
"But they are not as technologically advanced as hypercars. LMDH [hypercars] have 38 pages of just what the steering wheel does; there so many switches… so many different things for the same issue.
"There's lot to learn - it's a staggering amount of stuff and it blows your mind and takes a while to get used to.
"It's very clever but very complex, and it takes a different type of driver - you need the skill on track but also you need to be an expert in engineering as well."
...
Button's announcement comes as sportscar racing is experiencing a renaissance, with several major car manufacturers returning thanks to recent design rules allowing teams to experiment with performance philosophies, while other series impose strict limits.
Following a period when Toyota were the only top manufacturer in WEC, the 2023 season saw Porsche, Ferrari and Cadillac join Peugeot in a reinvigorated championship, in which Ferrari shocked Le Mans by winning after a 50-year absence.
The 2024 campaign will see Alpine, BMW and Lamborghini also begin hypercar programmes, with Aston Martin joining in 2025.