By 2000, he had diversified funding sources for his then-$5.
By the year 2000, he had found some way to diversify his funding sources for just, what at the time, was $5, and this was unheard of by anyone before.
mnli hypothesis: By the year 2000, he had found some way to diversify his funding sources for just, what at the time, was $5, and this was unheard of by anyone before. premise: By 2000, he had diversified funding sources for his then-$5.