To be honest. I love all the space exploration outlook and be also totaly excited for it. But what i guess, i seen a lot of your podcasts but realy not all of it, what most of your guest like elon like Ariel and others doesn´t see or talk about, is the potencial risk we are taking. One virus, bacteria or some kind of totaly unknown substance from another planet, could destroy all of us, the food source, the energy or what ever is needed for sustain this live on this planet. Should we do it? Is it worth it? I guess the answer is yes. But with extreme coution. Don´t you think? It is often in history that someone took a extreme risk, often without realising it (nuclear, medicin etc.) which brought extreme progress, but also could have be disasdress. I think we should learn from that history an be a little bit more concernd as our great resaerchers bevor us. What´s your take on this.?,(reply>), Lex alluded to this briefly, but I'm far more concerned about the human factor. Our species may not be mature enough to operate peacefully and equitably off-world. Space may be just another "frontier" for sociopaths to exploit. We need to get our own "house" in order first. Otherwise, we will play out the same behaviors that bedevil us on Earth today, but with a shiny cosmic wrapper.