Conclusions
*The 2005 outburst and the pre-1948 data show that the light curve is not really periodic (sorry guys, but you’re wrong!).
–OJ287 will show periodicity for »50 years at a time, but no longer.
–The periodicity has just broken down (again).
–But the binary singularity model can explain this behaviour.
–The lifetime of the system against gravitational radiation is ~106 years π There will be very few close AGN binaries because they have a short lifetime. The black holes coalesce rapidly.
–The next 12 months will make or break the rival theories.
–To a large degree it will be amateur astronomers who show which theory (if any) is correct.