Small Probabilities and High Stakes

What price should you be willing to pay for a tiny probability of an astronomically large gain, or to avoid a tiny probability of an astronomically large loss? Should you be willing to pay any finite price, if the potential gains or losses are large enough? Fanaticism says you should, while anti-fanaticism says you should not. Focusing on morally motivated decision-making, this Element explores arguments for and against both positions, ultimately defending the intermediate view that rationality permits a range of dispositions toward extreme risks, while ruling out the most comprehensive forms of both fanaticism and anti-fanaticism. The final section considers practical implications, arguing that under real-world circumstances any view satisfying a minimal principle of rationality must very often rank options by expected value, and thus sometimes give great weight to intuitively small probabilities, but that we nonetheless retain rational flexibility in sufficiently extreme cases.

UK Delivery:

• Free delivery on all orders of £10 or more.
• £1.49 delivery fee on orders below £10.
• UK orders are shipped via Royal Mail 2nd Class.

International Delivery:

• Flat rate delivery charges vary by country.

Dispatch and Delivery Times:

• All orders are shipped from our warehouse in Northampton, UK within 48 hours of receipt during working hours.
• UK mainland orders typically arrive within 3-5 working days via Royal Mail 2nd Class.
• International estimated delivery times:
• Europe & Channel Islands: 7 to 10 working days
• USA: 7 to 15 working days
• Rest of the World: 9 to 21 working days

View our full delivery infomation here.