Is it difficult for a US citizen to move to Australia?

Is it difficult for a US citizen to move to Australia, yes it is moderately difficult because Australia has strict points-based immigration system and requires visa, but it is achievable with skills, job offer or family. US citizens can visit Australia visa-free with ETA subclass 601 for 3 months, but to move permanently need skilled visa, employer sponsored or family visa. For skilled migration, you need occupation on Core Skills Occupation List, skills assessment, English test and points score 65+ for age, English, work experience and education, with processing 8 to 18 months and cost $4,770 plus medical $500. For employer sponsored, you need Australian employer to sponsor you under Skills in Demand visa 482 with income threshold $73K to $76K, then pathway to permanent after 2 years, which is common for IT, healthcare and engineering. For US citizens, no special advantage over other nationalities, except strong English and qualifications help points. Difficulty includes high visa fees $4K to $9K, health examination, police checks and competition for points, with only about 30% of skilled applicants invited due to cap of 185K places per year. For retirement, no retirement visa, need investor visa $2.5M. For students, need student visa $1,600 plus funds $29K. Overall, for US citizen with degree, skilled occupation and English, moving to Australia is possible but requires planning, skills assessment and employer or points, taking 12 to 24 months, so moderately difficult but not impossible, easier than many countries due to shared language.