> Terraforming Mars is quick and easy Yeah, we just need to funnel excess CO2 from Venus to Mars and make both planets habitable in the process. Easy peasy. 2

> Terraforming Mars is quick and easy Yeah, we just need to funnel excess CO2 from Venus to Mars and make both planets habitable in the process. Easy peasy. 2 million years tops. I'd consider finding a fast method of travel and suitable planet detection to be much much simpler than terraforming Mars, Venus or any other planet in this system. It's just a sequence of directed findings, maybe would take 1000 years. That's incomparable to starting geological-level processes on another planet and getting it right.