I'm looking forward to SpaceX demonstrating good engineering for a life support system that's capable of running for months on a reasonable mass budget. Except they aren't doing that, are they?
Saying how you imagine a solution would look like is cheap, figuring out an actual system is expensive and slow. Hell, just very basic things like extracting water from urine is actually difficult (organic matter forms a tar of sorts and gunks up machinery) and in the past unforeseen problems did pop up (amount of calcium in urine from disintegrating bones was a problem and didn't show up until in-orbit testing).
Musk is observably not doing things that Mars colonisation would require.
Being able to sustain life for months and years is "underwear", not an afterthought. In fact, I won't be surprised if achieving a reasonable level of life support will take much longer than developing propulsion.
Saying how you imagine a solution would look like is cheap, figuring out an actual system is expensive and slow. Hell, just very basic things like extracting water from urine is actually difficult (organic matter forms a tar of sorts and gunks up machinery) and in the past unforeseen problems did pop up (amount of calcium in urine from disintegrating bones was a problem and didn't show up until in-orbit testing).
Musk is observably not doing things that Mars colonisation would require.