#import "globals.typ": *

= Conclusion
== Summary
- #beorn a semi-numerical tool to simulate the 21-cm signal

  - uses the _halo model of reionization_
  - describes sources in terms of their host DM halo
  - $=>$ central dependence on halo growth
  // since it affects the SFR and thus the emissivity

- more accurate treatment of *individual* mass accretion
  // change in profiles trivially
  - leads to significant changes to reionization history
  // which could in theory be absorbed by shifting other paremeters
  - map-level fluctuations
  // which we can hope to observe (although many are subtle)

// unique position of 21-cm cosmology -> cannot discuss observational constraints

- #beorn python package: #link("https://github.com/cosmic-reionization/beorn")
  // invite you to check out
  - simulation-agnostic
  - easier to use
  - fully parallelized


== Outlook
- further validation
// finally ready for direct comparison with c2ray? now that parameters and loading have been properly implemented

- investigation + parameterization of stochasticity
// Assuming other relations related to production of photons is (hopefully by now well motivated) complex
// these cannot directly be inferred => expressed as a distribution as a function of another halo property

- application to larger volumes
// the scale-up -> large volumes with usable merger trees
// comitting to reserving some 100s of node hours (which I would still quantify as fast)