Yup, the only really economically viable way to send thousands of people to other planets. Travel as millions of frozen sperm and ovules and build a population in-situ. You can compensate the loses and unavoidable fatal errors detawning some boxes and making more people each time an emergency arises until having a stable population aware of most possible faux pas in the new environment.<p>The alternative to pack enough food for 14 or 18 years for each unhabitant is to pack enough food for a travel of several generations and maybe more than 100 years, and make an human habitat for dozens or thousands of people, and this would be logistically much more complicated.