Scottish football has become used over the years to talk of the Premiership 's big two moving down south.
Every so often talk of a switch to the English Premier League is mooted, while there has also been talk of a kind of 'Atlantic League'.
Now an economist says Celtic and Rangers should move to Ligue 1 to boost both French and Scottish football.
With the collapse of the French top flight's TV deal, clubs are struggling financially.
And Jean-Pascal Gayant believes the problems could be solved by bringing Rangers and Celtic across the channel.
Having first floated the idea in a column for Le Monde, the professor of economics expanded on his madcap plan.
Gayant told SoFoot : "European football is characterised by a fragmentation that seems ever more anachronistic.
"Admittedly, the Champions League and the other European competitions form a system allowing the best teams to compete against each other on a recurring basis, but, in the national leagues, the gap between the big dogs and the lower-ranked continues to grow.
"One of the reasons for this growing imbalance is that the top names benefit from the resources of the Champions League.
"This is a real proposition, the Scottish league is a bit flawed: 12 teams meeting three times each, then five more games to find a way to end the season by trying to correct the structural imbalance.
"The two Glasgow teams dominate, so making room for these two Scottish clubs in our Ligue 1 seems to me to be an opportunity jointly for Scottish football as well as French football."
And the economist laid out his vision of how the plan would work, with the Glasgow giants joining the likes of Paris Saint-Germain and Marseille in a smaller top flight.
Gayant continued: "As a first step, go to 16 teams in Ligue 1, or 18 possibly with the two Scottish teams.
"That way you create a competitive shock: with approximately the same wage bill spread over 16 or 18 teams rather than 20, the average quality numbers will increase and the clubs will have time to play European matches 'to the full'.
"Of course, we have to cushion the shock for the clubs which will be relegated to Ligue 2 and the National League.
"We must therefore also create a professional Ligue 3, and even a mixed Ligue 4 with pro and non-pro clubs.
"Today the pro world is in a Malthusian obsession for fear of having to fund the lower leagues. It is a very short-term vision."
