Is it to be understood from the Hadith: "For every disease there is a cure" that for every problem there is a solution, and is it permissible to be certain of that, and does the inability to solve a problem contradict reliance on Allah, and what is your advice for entering the field of inventions?

A Muslim must strive to acquire knowledge by which he benefits himself and his nation, with a righteous intention; for many sciences and industries are communal obligations (fard kifayah). The acquisition of knowledge is divided into individual obligations (fard ayn), such as learning what is indispensable for establishing one's religion; communal obligations (fard kifayah), such as medicine and arithmetic; recommended (mandub), such as extensive study of jurisprudence; forbidden (haram), such as magic and sorcery; disliked (makruh), such as lewd romantic poetry; and permissible (mubah), such as poetry that does not violate Islamic law. Reliance on Allah, coupled with taking appropriate means, brings solutions to problems. Whoever genuinely relies on Allah for something will attain it, whether it is beloved, permissible, or even forbidden, though the outcome may differ. A servant may be deprived of the appropriate means or complete reliance, or Allah may not respond due to wisdom.