my opinions Private companies are reluctant to invest in less profitable scientific projects, because they are obsessed with easy money and they have a narrow vision. They give priority to their self interests, but fail to evaluate a project from a long-term perspective. That means they are unwilling to put more energies and time into their daily work for less profitable scientific projects. If most private companies do this, the country would be likely to lag behind the rest of world. On the other hand, it is true that privately-funded research sometimes creates immdeiate benefits for the public because companies are normally driven by a commercial imperative. These companies prioritize profit-making. Otherwise, they cannot survive competition. They are likely to discover lucrative markets and carry out research to develop targeted products to fill the gaps in these markets, thereby meeting consumers' needs.