Essential prerequisites of utopia for humans:

- Aging is abolished for at least 99% of humans.

- Involuntary suffering is abolished for at least 90% of humans.
- Average annual risk of death for humans falls below 1/2000.

- No dystopian unintended consequences such as "everyone is hooked up to a heroin dispenser" or "a significant fraction of the population is killed and uploaded as slave against their will".

Here "utopia" should be understood as something relatively non-demanding. Becoming a multi-planetary species is, for example, not necessary. Neither is mind uploading. Neither is abolishing death or suffering altogether. The only necessary requisites are the ones listed above. I understand the definition is still vague, especially because of the last requisite, but I'm OK with predictors filling the remaining gaps and potentially predicting according to conflicting definitions of utopia.