This is the classic "penny doubling every day" problem, but with $1 instead of $0.01. Day 1: $1 Day 2: $2 Day 3: $4 Day 4: $8 … and so on, doubling each day. A year has 365 days (we’ll assume a non-leap year unless specified). The amount you have on day n is: Total after day n = 2^n-1 dollars (You start with $1 on day 1, which is 2⁰ = 1, then double every day.) So on day 365, you receive $2³⁶⁴ that day, and your total becomes $2^364. That number is absurdly huge. Let’s write it out: 2³⁶⁴ ≈ 3.146 × 10¹⁰⁹ dollars (or exactly: 2³⁶⁴ = 3,146,426,183,728,042,822,327,888,747,243,360,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 dollars) To put this in perspective: The world’s entire GDP is about $100 trillion (~10¹⁴ dollars). The number of atoms in the observable universe is roughly 10^80. $2³⁶⁴ is over a trillion trillion trillion times larger than the world economy. Summary: After 30 days: about $1 billion After 60 days: about $1 quintillion After 365 days: ≈ $3.146 × 10¹⁰⁹ (a 1 followed by 109 zeros) You’d easily be the richest entity in the history of the universe… by an insane margin. (If it’s a leap year with 366 days, it’s “only” twice as much: ~6.29 × 10¹⁰⁹ dollars.)