Tamim- concern for the Future

 We have been discussing Rav Moshe's view that medical tests could be a violation of Devarim (18:13) 

Others seem to limit that to avoiding astrologers or diviners. The Netziv and others say it only applies when there are prophets that are available. The Shulchan Aruch says the problem  it means searching for indications of the future such as asking an astrologer but there is no problem utilizing the information if you overhear it

Aside from medical tests there is the question of insurance which Rav Moshe permits as a business deal. What about Social Security or eating healthy food? |Should smoking cigarettes be a concern or vaping? Some say using a doctor at all is also a problem.

Rav Noach Weinberg told me that utilizing sear belts and vaccinations show lack of bitachon. Others say being concerned with air raid sirens is a lack of bitachon. or even following elementary rules such as stopping for a red light or wear a reflector when walking down a dark road or signaling when turning

Interestingly the biggest concern we have with the future is what we call chinuch. Nobody I know would send their child to public school or a coed school or college or medical school saying "Whatever G-d wants will happen. Similarly everyone is concerned with who are your child's friends and who he/she associates with

Similarly with shidduchim no one says my child will marry the first person proposed and I will not check out who they are. Rav Moshe does caution about too much instigation.  No one forms a business deal or invests money or buys a house without doing investigation regarding the future.

In sum, there are those who say that everything that happens is because G-d makes it happen and you simply must view everything as a direct consequence of G-d's Will.  Others say that man is a required participant and must do whatever hishtadus he can and G-d does the rest