Ok I will try (once more) to explain why Jakob´s current 800m PB isn´t a reliable measure for his real potential:
1. If you only run 2 random early season 800m races within 3 years it is very unlikely that you hit your real potential.
2. Look at the real 800m runners rustbusters compared to their SBs. Can you find any examples where these times are close? I will help you:
I have taken the first 10 on the 2023 outdoor 800m ranking:
No. 1 Wanyonyi has only inproved marginally so far (he also started with a 1:43 time; but the season is not over yet).
The rest have improved between 5 sec (Roberts) and 1 sec (Murphy). The average improvement from their rustbuster is about 3 sec (and the season isn´t over yet).
3. Jakob´s PB (1:46.44) was run 3 years ago at age 19. He has clearly improved his speed since then. See his races from 1500m and up the last years. He is one of the fastest in the last 100m even if the pace is "modest" (as in DL Rabat). And as pointed out by others: Wightman didn´t destroy Jakob in the WC final last year. He beat Jakob narrowly after having saved his energy for his final burst. While Jakob had wasted some energy by holding off Tim.
4. Jakob´s 800m last year in Bergen was run under poor weather conditions where the winner Van Diepen and no 2 Deng was far from their SBs. 2.5 and 2 sec respectively.
5. Centro and Engels have run 1:44 and Jakob have outsprinted them time and again so why don´t you think Jakob at least can go 1:44 too?
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But all this is theory. We can come back to this thread after the 1500m in DL Lausanne and DL Silesia. I think there is a good chance that Jakob will improve further in the 1500m independent of what we consider to be his 800m potential.