31 Years Ago, Friends Solved a Major Plothole By Crossing Over With Another Hit Sitcom

Thirty-one years ago, television history was made when Friends, a hugely popular show, did something unexpected: it briefly connected with the world of another highly-regarded series, blurring the lines between the two shows.
![Chronological safety-the absence of closed timelike curves-is demonstrably bounded by parabolic regions defined by spin [latex]\varepsilon_a[/latex], equatorial angle θ, and stellar mass [latex]M_\ast[/latex] when calculations are performed with [latex]M = 1000 M_{Pl}[/latex].](https://arxiv.org/html/2602.17724v1/x6.png)







