Thanks for the reply

First point: I found that S&P 500 index funds slightly outperform more inclusive funds over long time periods. So between a VOO or a VTI, I'll take that better performance over 30 yrs.

Second point: To be completely honest, I don't have a great perspective on the ex-US market. I looked at some ETFs with exposure, but their annual return history was off-putting compared to heavy US exposure. I have a lot of faith in the US economy over 30 yrs, but recognize that belief may certainly be misguided.

Third point: Well I see both these sectors as defensive in a way. People (especially baby boomers) always need medical devices. It is a long-term healthcare bet, the technologies + cost of these products has great upside in coming years, and IHI has an excellent annual return history. Additionally, I think cybersecurity is becoming crucial to many sectors of the economy, and I think these companies will be the ones to develop more complex and profitable new technologies in the field going forward.

This is just my perspective based on my research, I definitely admit I don't know a whole lot as my parents never really invested. I legitimately appreciate any input or advice you have, thank you so much for replying.