1. Lack of Immediate Appeal: Columbus's proposal initially faced skepticism due to its unconventional nature and the uncertain prospect of success. The idea of sailing westward across the Atlantic to reach Asia was considered innovative, and the potential benefits were not immediately evident to Spanish officials.
2. High Costs and Risks: The voyage proposed by Columbus involved high financial costs and significant risks. The Spanish monarchy and its advisors had to carefully consider the substantial investment required for the expedition, weighing it against the potential gains.
3. Alternative Explorations: At the time, Spain was already engaged in various exploration and expansion efforts, particularly in North Africa and the Canary Islands. These ongoing projects often took precedence, as they appeared to offer more immediate and tangible benefits.
4. Technological Challenges: The available ships and navigation techniques in the late 15th century were not yet well-suited for long-distance ocean voyages. The uncertainties associated with crossing the vast Atlantic presented a formidable challenge.
5. Competing Interests: Spain had diverse interests and priorities, including the Reconquista, the war against the Muslim rulers of the Iberian Peninsula, which required significant resources and attention.
It was primarily due to Columbus's persistence, his ability to gain the support of influential advisors, and his eventual success in convincing Queen Isabella of the potential rewards that Spain ultimately decided to fund his voyage.
