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namespace TestJumps {
	class Program {
		static void Main(string[] args) {
			string s;
			do {
				double d;
				Console.Write("Input test value: ");
				s = Console.ReadLine();
				if (double.TryParse(s, out d) && d > .5D) {
					int i = 0;
					double total = d;
					while (total < 1D) {
						d /= 2;
						total += d;
						i++;
					}
					Console.WriteLine("Total {0} reached in {1} steps", total, i);
				}
			} while (!string.IsNullOrEmpty(s));
		}
	}
}

Kornfeld Eliyahu Peter wrote:

I would like to know why in reality it is not true!