I'm pretty sure you can already buy a helicopter or even a private jet.
A new smartphone form factor -- most likely a smaller, thicker (but less dense) palm-fitting form factor with rounded edges and surfaces: 2020
First commercial lab grown meat product: 2022
First detection of free Oxygen or other signs of life in an extra-solar planetary atmosphere: 2024
Major social upheavals against income inequality in the US and western Europe, with possible economic depression: 2024
Electric vehicle sales overtake gasoline vehicles: 2025
Last coal plant in the world decommissioned: 2030
Next manned lunar landing: 2040
First man on Mars: NIML (due to worldwide socioeconomic decline)
Regarding Mars, I think at this point it depends more on SpaceX internet satellite profits than on overall socioeconomic conditions.