So, I curious and trying to determine what sort life expectancy a human being would have if they were immortal (as in, no more senescence (aging)). Accidental deaths only. I've googled around and found numbers from a few hundred years to nearly 9000 years.
Europe has some great statistics on accidental deaths - https://ec.europa.eu/eurostat/statistics-explained/index.php/Accidents_and_injuries_statistics#Deaths_from_accidents.2C_injuries_and_assault
The headline is that 3.1% of deaths were accidents in 2015.
However, it occurs to me that the best representative sample to use is people aged 15-25 who generally don't really die from illnesses and are in better health so less susceptible to things like falls (and more to traffic accidents). There's a graph on that page that shows accidental deaths are about 35% of all deaths for those age groups.
Unfortunately I lack the mathematical chops to be able to take those numbers and merge them together meaningfully. So.... given the information above (and in the link if I've missed anything useful out), what's the approximate average European life expectancy if we "solved" senescence tomorrow?