I asked ChatGPT, it thought for 3 minutes and 36 seconds. You can see the Q&A here [1].
Assuming that a one year salary of the average scientist is 100K euro's [2] then that means you're trying to attract an extra 1250 scientists that will work for 4 years.
That doesn't sound like a lot on a continental scale.
[1] https://chatgpt.com/share/682376a6-5c68-8005-89ab-2bedd453c7...
[2] It's definitely lower than 100K, but it allows for unexpected hidden overhead that ChatGPT potentially didn't account for.